<SEC-DOCUMENT>0001213900-19-022975.txt : 20191112
<SEC-HEADER>0001213900-19-022975.hdr.sgml : 20191112
<ACCEPTANCE-DATETIME>20191112171222
ACCESSION NUMBER:		0001213900-19-022975
CONFORMED SUBMISSION TYPE:	SC 13D
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20191112
DATE AS OF CHANGE:		20191112
GROUP MEMBERS:		B. RILEY CAPITAL MANAGEMENT, LLC
GROUP MEMBERS:		B. RILEY FBR, INC.
GROUP MEMBERS:		B. RILEY PRINCIPAL INVESTMENTS, LLC
GROUP MEMBERS:		BRC PARTNERS MANAGEMENT GP, LLC
GROUP MEMBERS:		BRC PARTNERS OPPORTUNITY FUND, LP
GROUP MEMBERS:		BRYANT R. RILEY
GROUP MEMBERS:		KENNETH YOUNG

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SONIM TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001178697
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		IRS NUMBER:				943336783
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91008
		FILM NUMBER:		191210747

	BUSINESS ADDRESS:	
		STREET 1:		1875 SOUTH GRANT STREET
		STREET 2:		SUITE 750
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94402
		BUSINESS PHONE:		650-378-8100

	MAIL ADDRESS:	
		STREET 1:		1875 SOUTH GRANT STREET
		STREET 2:		SUITE 750
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94402

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			B. Riley Financial, Inc.
		CENTRAL INDEX KEY:			0001464790
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				270223495
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D

	BUSINESS ADDRESS:	
		STREET 1:		21255 BURBANK BLVD.
		STREET 2:		SUITE 400
		CITY:			WOODLAND HILLS
		STATE:			CA
		ZIP:			91367
		BUSINESS PHONE:		818-884-3737

	MAIL ADDRESS:	
		STREET 1:		21255 BURBANK BLVD.
		STREET 2:		SUITE 400
		CITY:			WOODLAND HILLS
		STATE:			CA
		ZIP:			91367

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Great American Group, Inc.
		DATE OF NAME CHANGE:	20090522
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D
<SEQUENCE>1
<FILENAME>sc13d1119briley_sonimtech.htm
<DESCRIPTION>SCHEDULE 13D
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>SECURITIES AND
EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>SCHEDULE 13D<BR>
(Rule 13d-101)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>INFORMATION TO
BE INCLUDED IN STATEMENTS FILED PURSUANT </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>TO &sect; 240.13d-1(a)
AND AMENDMENTS THERETO FILED </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>PURSUANT TO &sect;
240.13d-2(a)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>UNDER THE SECURITIES
EXCHANGE ACT OF 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">(Amendment No. __)*</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 100%; border-bottom: Black 1.5pt solid; padding-right: 0.8pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sonim
    Technologies, Inc. </B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center">(Name of Issuer)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common
    Stock, par value $0.001</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 5.4pt; text-align: center">(Title of Class of Securities)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 5.4pt; text-align: center">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(CUSIP
    Number)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 5.4pt; text-align: center; font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center"><B>Bryant R. Riley</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center"><B>B. Riley Financial,
        Inc.</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center"><B>21255 Burbank Boulevard,
        Suite 400</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center"><B>Woodland Hills, CA
        91367</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center"><B>(818) 884-3737</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Name,
    Address and Telephone Number of Person Authorized to Receive Notices and Communications)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center; font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; padding-right: 0.8pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>October
    30, 2019</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Date
    of Event which Requires Filing of this Statement)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-size: 10pt">If the filing
person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and
is filing this schedule because of &sect;&sect; 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.&nbsp;</FONT>&#9744;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-size: 10pt"><I>Note.
</I></FONT>Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.
<I>See</I> &sect; 240.13d-7 for other parties to whom copies are to be sent.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">*The remainder of this cover page shall
be filled out for a reporting person&rsquo;s initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The information required on the remainder
of this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section 18 of the Securities Exchange Act
of 1934 (&ldquo;Act&rdquo;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, <I>see</I> the Notes).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid; border-bottom: Black 2pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>


<!-- Field: Page; Sequence: 1 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    Riley Financial, Inc.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">WC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; font-size: 10pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; font-size: 10pt; width: 5%; border-right: Black 1.5pt solid">&nbsp;&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delaware</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,139,085</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,806,510.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,139,085</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,806,510.46</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14.0%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">HC</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of common stock, par value $0.001 (the &ldquo;Common
                                         Stock&rdquo; or &ldquo;Shares&rdquo;), of Sonim Technologies, Inc. (the &ldquo;Issuer&rdquo;)
                                         outstanding as of August 1, 2019 as reported in the Issuer&rsquo;s quarterly report on
                                         Form 10-Q filed with the Securities and Exchange Commission (the &ldquo;SEC&rdquo;) on
                                         August 13, 2019 (the &ldquo;Form 10-Q&rdquo;), plus (ii) 732,852.46 shares of Common
                                         Stock issuable upon the conversion of the Convertible Note (as defined below), which
                                         is exercisable within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 2; Options: NewSection; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->2<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    Riley Capital Management, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">WC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">New
    York</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">IA</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 3; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->3<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>BRC
    Partners Management GP, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">WC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delaware</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">OO</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 4; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->4<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>BRC
    Partners Opportunity Fund, LP</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">WC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delaware</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,073,658</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PN</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 5; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->5<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    Riley Principal Investments, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">WC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delaware</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">732,852.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">732,852.46</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">732,852.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.5%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">OO</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 6; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->6<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    Riley FBR, Inc. </B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: left"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">WC</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delaware</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0.0%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">BD</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 7; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->7<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Kenneth
    Young</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">OO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">United
    States of America</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14.0%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">IN</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 8; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->8<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="width: 50%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt; text-align: right; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>83548F101</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES
    OF REPORTING PERSONS</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Bryant
    R. Riley</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(a) &#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">(b) &#9744;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE
    OF FUNDS (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">OO</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&nbsp;&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">United
    States of America</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="8" STYLE="width: 20%; border: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON<BR>
    WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 75%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    VOTING POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
    DISPOSITIVE POWER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,945,595.46</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12</B></FONT></TD>
    <TD STYLE="padding: 2pt 5.4pt; width: 90%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
    BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (<I>See</I> Instructions)</FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt; width: 5%">&#9744;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14.0%*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; padding: 2pt 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
    OF REPORTING PERSON (<I>See</I> Instructions)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding: 2pt 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">IN</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in; text-align: left">*</TD><TD STYLE="text-align: justify">Percent of class is
                                         calculated based on (i) 20,357,783 shares of Common Stock of the Issuer outstanding as
                                         of August 1, 2019 as reported in the Issuer&rsquo;s Form 10-Q, plus (ii) 732,852.46 shares
                                         of Common Stock issuable upon the conversion of the Convertible Note, which is exercisable
                                         within 60 days.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 9; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->9<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Explanatory Note</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On October 30, 2019, certain Reporting
Persons acquired and disposed of Common Stock of the Issuer as further described herein. Prior to the October 30, 2019 transactions,
the Reporting Persons had an obligation to file a Schedule 13G within 45 days after the end of the calendar year. This Schedule
13D (this &ldquo;Schedule 13D&rdquo;) is being filed by the Reporting Persons in connection with the October 30, 2019 acquisitions,
which, together with all other acquisitions of Common Stock by the Reporting Persons during the preceding 12 months, exceed two
percent of the outstanding Common Stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 45pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
1. Security and Issuer</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 45pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The securities to which this Schedule
13D relates are the common stock, $0.001 par value per share (the &ldquo;Common Stock&rdquo;), of Sonim Technologies, Inc., a
Delaware corporation (the &ldquo;Issuer&rdquo;). The address of the principal executive offices of the Issuer is 1875 South Grant
Street, Suite 750, San Mateo, CA 94402.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
2. Identity and Background</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(1)</FONT></TD><TD STYLE="text-align: justify">B.
                                         Riley Financial, Inc. (&ldquo;BRF&rdquo;) is a Delaware corporation with a principal
                                         place of business located at 21255 Burbank Boulevard, Suite 400, Woodland Hills, California
                                         91367. The principal business of BRF is serving as a holding company.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Set forth on Schedule A annexed
hereto (&ldquo;Schedule A&rdquo;) is the name and present principal business, occupation or employment and the name, principal
business and address of any corporation or other organization in which such employment is conducted, and the citizenship of the
executive officers and directors of BRF. To the best of BRF&rsquo;s knowledge, except as otherwise set forth herein, none of the
persons listed on Schedule A beneficially owns any securities of the Issuer or is a party to any contract, agreement, or understanding
required to be disclosed herein.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(2)</FONT></TD><TD STYLE="text-align: justify">BRC
                                         Partners Opportunity Fund, L.P. (&ldquo;BRPLP&rdquo;) is a Delaware limited partnership
                                         with a principal place of business located at 11100 Santa Monica Blvd., Suite 800, Los
                                         Angeles, California 90025. The principal business of BRPLP is investing in securities.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(3)</FONT></TD><TD STYLE="text-align: justify">B.
                                         Riley Capital Management, LLC (&ldquo;BRCM&rdquo;) is a New York limited liability company
                                         with a principal place of business located at 11100 Santa Monica Blvd., Suite 800, Los
                                         Angeles, California 90025. The principal business of BRCM is acting as a registered investment
                                         advisor to various clients.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(4)</FONT></TD><TD STYLE="text-align: justify">B.
                                         Riley Principal Investments, LLC (&ldquo;BRPI&rdquo;) is a Delaware limited liability
                                         company with a principal place of business located at 11100 Santa Monica Blvd., Suite
                                         800, Los Angeles, California 90025. The principal business of BRPI is investing in securities.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(5)</FONT></TD><TD STYLE="text-align: justify">BRC
                                         Partners Management GP, LLC (&ldquo;BRPGP&rdquo;) is a Delaware limited liability company
                                         with a principal place of business located at 11100 Santa Monica Blvd., Suite 800, Los
                                         Angeles, California 90025. The principal business of BRPGP is serving as a general partner
                                         of BRPLP.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(6)</FONT></TD><TD STYLE="text-align: justify">B.
                                         Riley FBR, Inc. (&ldquo;BRFBR&rdquo;) is a Delaware corporation with a principal place
                                         of business located at 11100 Santa Monica Blvd., Suite 800, Los Angeles, California 90025.
                                         The principal business of BRFBR is serving as a broker dealer.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(7)</FONT></TD><TD STYLE="text-align: justify">The
                                         address of the business office of Mr. Kenneth Young is 21255 Burbank Boulevard, Suite
                                         400, Woodland Hills, California 91367. Mr. Young, an individual, is the Chief Executive
                                         Officer of B. Riley Principal Investments, LLC and President of B. Riley Financial, Inc.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">
<TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">(8)</FONT></TD><TD STYLE="text-align: justify">The
                                         address of the business office of Mr. Bryant R. Riley is 21255 Burbank Boulevard, Suite
                                         400, Woodland Hills, California 91367. Mr. Riley, an individual, is the Co-Chief Executive
                                         Officer and Chairman of the Board of Directors of BRF.</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></P>

<!-- Field: Page; Sequence: 10; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->10<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">During the last five years, none of the
Reporting Persons nor any person listed on Schedule A have been: (i) convicted in a criminal proceeding (excluding traffic violations
or similar misdemeanors); or (ii) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction
and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting
or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
3. Source and Amount of Funds or Other Considerations</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">All of the shares of Common Stock to which
this Schedule 13D relates were purchased on behalf of the Reporting Persons using the investment capital of the respective Reporting
Persons. The aggregate purchase price of the 2,212,743 shares of Common Stock was approximately $10,301,036 (excluding commissions).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The information with respect to the securities
convertible into shares of Common Stock under the Convertible Note in Item 6 is incorporated by reference herein.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">From time to time, the Reporting Persons
may effect purchases of securities through margin accounts, and may be extended margin credit as and when required to open or
carry positions in the margin accounts, subject to applicable federal margin regulations and stock exchange rules. In such instances,
the positions held in the margin accounts are pledged as collateral security for the repayment of debit balances in the accounts.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
4. Purpose of Transaction</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Reporting Persons purchased the Common
Stock they currently hold for investment purposes, and such purchases were made in the ordinary course of business of the Reporting
Persons.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In pursuing such investment purposes,
the Reporting Persons may further purchase, hold, vote, trade, dispose or otherwise deal in the Common Stock at times, and in
such manner, as they deem advisable to benefit from, among other things, (1) changes in the market prices of the shares of Common
Stock; (2) changes in the Issuer&rsquo;s operations, business strategy or prospects; or (3) from the sale or merger of the Issuer.
To evaluate such alternatives, the Reporting Persons intend to closely monitor the Issuer&rsquo;s operations, prospects, business
development, management, competitive and strategic matters, capital structure, and prevailing market conditions, as well as other
economic, securities markets and investment considerations. Consistent with their investment research methods and evaluation criteria,
the Reporting Persons may discuss such matters with the management or Board of Directors of the Issuer (the &ldquo;Board&rdquo;),
other stockholders, industry analysts, existing or potential strategic partners or competitors, investment and financing professionals,
sources of credit, and other investors. Such evaluations and discussions may materially affect, and result in, among other things,
the Reporting Persons (1) modifying their ownership of the Common Stock; (2) exchanging information with the Issuer pursuant to
appropriate confidentiality or similar agreements; (3) proposing changes in the Issuer&rsquo;s operations, governance or capitalization;
(4) pursuing a transaction that would result in the Reporting Persons&rsquo; acquisition of all or a controlling interest in the
Issuer; or (5) pursuing one or more of the other actions described in subsections (a) through (j) of Item 4 of Schedule 13D.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In addition to the information disclosed
in this Statement, the Reporting Persons reserve the right to (1) formulate other plans and proposals; (2) take any actions with
respect to their investment in the Issuer, including any or all of the actions set forth in subsections (a) through (j) of Item
4 of Schedule 13D; and (3) acquire additional shares of Common Stock or dispose of some or all of the shares of Common Stock beneficially
owned by them, in each case in the open market, through privately negotiated transactions or otherwise. The Reporting Persons
may at any time reconsider and change their plans or proposals relating to the foregoing.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<!-- Field: Page; Sequence: 11; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->11<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Prior to the Issuer&rsquo;s initial public
offering, the Reporting Persons held securities of the Issuer as previously disclosed in the Form 3 filed by the Reporting Persons
with the SEC on May 9, 2019. On October 30, 2019, BRFBR purchased an aggregate of 25,500 shares of Common Stock through purchases
on the open market and subsequently sold an aggregate of 25,500 shares of Common Stock on the same date, as further described
in Schedule B. As previously disclosed in the Form 4 filed by the Reporting Persons with the SEC on November 1, 2019, certain
of the foregoing transactions were matchable transactions under Section 16(b) of the Exchange Act of 1934, as amended, and the
Reporting Persons disgorged the full amount of recoverable profits to the Issuer. The number of securities of the Issuer held
by the Reporting Persons prior to the October 30, 2019 transactions has not changed on account of such transactions.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Reporting Persons intend to engage
in conversations with members of the Issuer&rsquo;s management to discuss ways to enhance shareholder value. Additionally, Mr.
Young serves as a member of the Board of the Issuer.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
5. Interest in Securities of the Issuer</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(a) - (b)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">1.</TD><TD STYLE="text-align: justify">As of the date
                                         hereof, BRF beneficially owns directly 1,139,085 shares of Common Stock representing
                                         5.4% of the Issuer&rsquo;s Common Stock and BRPLP beneficially owns directly 1,073,658
                                         shares of Common Stock, representing 5.1% of the Issuer&rsquo;s Common Stock.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-size: 10pt">2.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">As
                                         of the date hereof, 732,852.46 </FONT>shares are issuable upon conversion of the Convertible
                                         Note issued to BRPI, representing 3.5% of the Issuer&rsquo;s Common Stock.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">3.</TD><TD STYLE="text-align: justify">BRPGP is the
                                         general partner of BRPLP, BRCM is the parent company of BRPGP and BRF is the parent company
                                         of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own
                                         the Common Stock held by BRPLP.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">4.</TD><TD STYLE="text-align: justify">Kenneth Young
                                         is the Chief Executive Officer of B. Riley Principal Investments, LLC and President of
                                         B. Riley Financial, Inc. As a result, Mr. Young may be deemed to indirectly beneficially
                                         own the Shares held by BRF and BRPI.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">5.</TD><TD STYLE="text-align: justify">Bryant R. Riley
                                         is the Chief Executive Officer of BRCM and Chairman and Co-Chief Executive Officer of
                                         BRF. As a result, Mr. Riley may be deemed to indirectly beneficially own the Shares held
                                         by BRF and BRPLP.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Each of the Reporting Persons may be deemed
a member of a &ldquo;group&rdquo; with the other Reporting Persons for purposes of Rule 13d-5(b)(1) of the Exchange Act, and thus,
may be deemed to beneficially own the securities of the Issuer owned by the other Reporting Persons. The filing of this Schedule
13D shall not be deemed an admission that the Reporting Persons are, for purposes of Section 13(d) of the Exchange Act, the beneficial
owners of any securities of the Issuer it does not directly own or control. Each of the Reporting Persons specifically disclaims
beneficial ownership of the securities reported herein that it does not directly own or control. As of the date hereof, each of
BRPLP, BRPGP, BRCM, BRF, and Mr. Riley may be deemed to have shared power to vote or direct the vote of, and to dispose or direct
the disposition of, the Shares beneficially owned directly by BRPLP.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">As of the date hereof, Mr. Riley may be
deemed to have shared power to vote or direct the vote of, and to dispose or direct the disposition of, the Shares beneficially
owned directly by BRF. As of the date hereof, each of BRF, Mr. Young and Mr. Riley may be deemed to have shared power to vote
or direct the vote of, and to dispose or direct the disposition of, the Shares beneficially owned directly by BRPI.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(c) The Reporting Persons&rsquo; transactions
within the past 60 days are set forth on Schedule B hereto. Each of the transactions listed on Schedule B was a purchase or acquisition,
as specified therein, of Common Stock on the open market.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(d) Except as described herein, no other
person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares
of Common Stock held by the Reporting Persons.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(e) Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<!-- Field: Page; Sequence: 12; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->12<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><I>Investor Rights Agreement</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On October 26, 2017, BRF and BRPLP entered
into that certain Third Omnibus Amendment to the Amended and Restated Investor Rights Agreement, Amended and Restated Voting Agreement
and Amended and Restated Right of First Refusal and Co-Sale Agreement with the Issuer and the other investors, as described therein
(the &ldquo;Investor Rights Agreement&rdquo;), which provides for, among other things, registration rights of the Common Stock
and the right to designate a director to the Board of the Issuer, subject to certain conditions.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The foregoing description of the Investor
Rights Agreement is not, and does not purport to be, complete and is qualified in its entirety by reference to the full text of
the Investor Rights Agreement, which is filed as Exhibit 2 herewith and is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><I>Lock-Up Agreement</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In connection with the Issuer&rsquo;s
initial public offering, BRF and BRPLP entered into a Lock-Up Agreement (the &ldquo;Lock-Up Agreement&rdquo;), under which BRF
and BRPLP agreed not to, directly or indirectly, offer, sell, contract to sell, pledge, grant any option to purchase, make any
short sale, or otherwise dispose of or hedge any of the Common Stock, any options or warrants to purchase shares of the Common
Stock, or any securities convertible into, or exchangeable for or that represent the right to receive shares of the Common Stock,
without the prior written consent of Oppenheimer &amp; Co. Inc. for a period of 180 days from the date of the Lock-Up Agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><I>Loan Agreement and Convertible Note</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On October 26, 2017, BRPI entered into
a Subordinated Term Loan and Security Agreement (as amended, the &ldquo;Loan Agreement&rdquo;) with the Issuer. Under the Loan
Agreement, the Issuer can borrow principal up to $12,000,000 via a subordinated secured convertible promissory note (the &ldquo;Convertible
Note&rdquo;), with an optional conversion feature as described below. As of June 30, 2019, the total outstanding amount under
the Loan Agreement was $12,000,000 and total interest accrued was $1,109,000. The Loan Agreement, as amended, matures on September
1, 2022 (the &ldquo;Maturity Date&rdquo;) and carries a stated interest rate of 10% and provided that the first year of interest
be compounded into the principal on October 26, 2018, with interest-only payments beginning thereafter.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-size: 10pt">As amended,
the Convertible Note provides that at any time, on or prior to the Maturity Date, BRPI may elect to convert principal amounts
outstanding, including accrued interest, as limited below, into shares of Common Stock at $8.87 per share. The number of shares
of Common Stock to be issued upon conversion is limited to the sum of (A) the lesser of (i) the principal outstanding and (ii)
the aggregate principal amount borrowed under the Loan Agreement to date multiplied by the Designated Percentage as defined below,
and (B) accrued interest. The &ldquo;Designated Percentage&rdquo; is one hundred percent (100%) if the conversion date is prior
to the first anniversary of the effective date, seventy-five percent (75%) in Year 2 of the Loan Agreement, fifty percent (50%)
in Year 3, twenty-five percent (25%) in Year 4, and twelve and a half of percent (12.5%) in the final year of the Loan Agreement
on or prior to the Maturity Date. As of the date hereof, 732,852.46 </FONT>shares are issuable upon conversion of the Convertible
Note.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><I>Subordination Agreement and Side
Letter</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On October 26, 2017, BRPI and East West
Bank (the &ldquo;Senior Lender&rdquo;) entered into a Subordination Agreement, in which BRPI agreed that all junior debt, as described
therein (which includes the Convertible Note), is subordinated to borrowings under the a loan and security agreement (the &ldquo;Senior
Debt&rdquo;) with the Senior Lender. Pursuant to the Subordination Agreement, BRPI has the right to purchase from Senior Lender
all of Senior Lender&rsquo;s right, title, and interest in and to the Senior Debt at any time after (i) acceleration of the Senior
Debt which is not rescinded; (ii) the commencement of an Enforcement Action by Senior Lender which is not rescinded, (iii) the
passage of a period of 45 days during the continuance of a Senior Debt default, or (iv), commencement of any insolvency proceedings
against the Issuer. Under a side letter dated October 26, 2017 (&ldquo;Side Letter&rdquo;), with another major investor, BRPI
agreed that if it purchases or has the right to purchase the senior loan pursuant to the Side Letter, BRPI will offer to certain
other preferred stockholders the right to purchase undivided pro rata participation interests, in up to 50% of each of the Senior
Debt and junior debt. The major investor and the other preferred shareholders referenced in the Side Letter all sold portions
of their Series A holdings to BRPI affiliates and other purchasers in October 2017.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The foregoing description of the Side
Letter is not, and does not purport to be, complete and is qualified in its entirety by reference to the full text of the Side
Letter, which is filed as Exhibit 3 herewith and is incorporated herein by reference.</P>


<!-- Field: Page; Sequence: 13; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->13<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
7. Material to Be Filed as Exhibits</B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt">The following documents
are filed as exhibits:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-right: 0.8pt; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit
    Number</B></FONT></TD>
    <TD STYLE="width: 1%; padding-right: 0.8pt; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="width: 89%; padding-right: 0.8pt; border-bottom: Black 1.5pt solid; text-align: left; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Description</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: left; vertical-align: bottom">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="width: 10%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</FONT></TD>
    <TD STYLE="width: 1%; text-align: justify">&nbsp;</TD>
    <TD STYLE="width: 89%; text-align: justify"><A HREF="#s_001"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Joint
    Filing Agreement, dated November 11, 2019, by and among B. Riley Financial, Inc., BRC Partners Opportunity Fund, L.P., BRC
    Partners Management GP, LLC, B. Riley Capital Management, LLC, B. Riley Principal Investments, LLC, B. Riley FBR, Inc., Kenneth
    Young and Bryant R. Riley.</FONT></A></TD></TR>
<TR STYLE="vertical-align: top; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2</FONT></TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="http://www.sec.gov/Archives/edgar/data/1178697/000119312519106699/d698320dex42.htm"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amended and Restated
    Investor Rights Agreement, by and between Sonim Technologies, Inc., B. Riley Financial, Inc., and the other investors listed
    on Exhibit A thereto, dated November 21, 2012, as amended (incorporated by reference to Exhibit 4.2 to the Issuer&rsquo;s
    Registration Statement on Form S-1 filed with the SEC on April 15, 2019).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3</FONT></TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="#n1"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Letter Agreement, dated October 23, 2017, between B. Riley Principal Investments, LLC and Investec Investments (UK) Limited.</FONT></A></TD></TR>
</TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

<!-- Field: Page; Sequence: 14; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->14<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Signature</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">After reasonable inquiry and to the best
of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Date: November 11, 2019</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY FINANCIAL, INC.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify; width: 60%">&nbsp;</TD>
    <TD STYLE="text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify; width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:&nbsp; </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Co-Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>BRC
    PARTNERS OPPORTUNITY FUND, L.P.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Investment
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>BRC
    PARTNERS MANAGEMENT GP, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    B. Riley Capital Management, LLC, its sole member</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY CAPITAL MANAGEMENT, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY PRINCIPAL INVESTMENTS, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">s/
    Kenneth Young&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Kenneth Young </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY FBR, INC.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify">/<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">s/
    Andy Moore&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Andy Moore </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Kenneth Young&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Kenneth
    Young </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant
    R. Riley</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The original statement shall be signed
by each person on whose behalf the statement is filed or his authorized representative. If the statement is signed on behalf of
a person by his authorized representative (other than an executive officer or general partner of this filing person), evidence
of the representative&rsquo;s authority to sign on behalf of such person shall be filed with the statement, provided, however,
that a power of attorney for this purpose which is already on file with the Commission may be incorporated by reference. The name
and any title of each person who signs the statement shall be typed or printed beneath his signature.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Attention: Intentional misstatements
or omissions of fact constitute Federal criminal violations (<I>see</I> 18 U.S.C. 1001).</B></P>


<!-- Field: Page; Sequence: 15; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->15<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U><A NAME="s_001"></A>EXHIBIT 1</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>JOINT FILING AGREEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In accordance with Rule 13d-1(k)(1)(iii)
under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of
them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the common stock, $0.001 par value
per share, of Sonim Technologies, Inc., a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such
Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Dated: November 11, 2019</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY FINANCIAL, INC.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify; width: 60%">&nbsp;</TD>
    <TD STYLE="text-align: justify; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: justify; width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Co-Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>BRC
    PARTNERS OPPORTUNITY FUND, L.P.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Investment
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>BRC
    PARTNERS MANAGEMENT GP, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    B. Riley Capital Management, LLC, its sole member</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY CAPITAL MANAGEMENT, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY PRINCIPAL INVESTMENTS, LLC</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Kenneth Young&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Kenneth Young </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
    RILEY FBR, INC.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By: </FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Andy Moore&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:
    </FONT></TD>
    <TD STYLE="text-align: left; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Andy
    Moore </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive
    Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Kenneth Young&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Kenneth
    Young </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 0.8pt; text-align: justify; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Bryant R. Riley&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bryant
    R. Riley</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 16; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->16<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>SCHEDULE A</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Executive Officers
and Directors of B. Riley Financial, Inc.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="width: 25%; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid; vertical-align: bottom">Name
    and Position</TD><TD STYLE="width: 1%; font-weight: bold; text-align: center; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 35%; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid; vertical-align: bottom">Present
    Principal Occupation</TD><TD STYLE="width: 1%; font-weight: bold; text-align: center; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 22%; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid; vertical-align: bottom">Business
    Address</TD><TD STYLE="width: 1%; font-weight: bold; text-align: center; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 15%; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid; vertical-align: bottom">Citizenship</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Bryant R. Riley, Chairman and Co-Chief Executive Officer</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Co-Portfolio Manager of BRC Partners Opportunity Fund, LP, Chief Executive
    Officer of BRC Partners Management GP, LLC, Chief Executive Officer of B. Riley Capital Management, LLC, and Co-Chief Executive
    Officer of B. Riley Financial, Inc.</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">11100 Santa Monica Blvd. <BR>Suite 800 <BR>Los Angeles, CA 90025</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Thomas J. Kelleher, Co-Chief Executive Officer and Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Co-Chief Executive Officer of B. Riley Financial, Inc. and President of
    B. Riley Capital Management, LLC.</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">11100 Santa Monica Blvd. <BR>Suite 800 <BR>Los Angeles, CA 90025</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Andrew Gumaer, Chief Executive Officer of Great American Group, LLC and
    Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Chief Executive Officer of Great American Group, LLC, a subsidiary of B.
    Riley Financial, Inc.</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Robert D&rsquo;Agostino, Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">President of Q-mation, Inc., a supplier of software solutions</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Mikel Williams, Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">CEO &amp; Director of privately held Targus International, LLC, supplier
    of carrying cases and accessories</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Todd D. Sims, Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">SVP of Digital&nbsp;Strategy, Anschutz Entertainment Group, Inc., a sports
    and entertainment company</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Robert L Antin, Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Co-Founder, VCA, Inc., an owner and operator of Veterinary care centers
    &amp; hospitals</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Michael J. Sheldon, Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Chairman &amp; CEO of Deutsch North America, a creative agency</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Marian K. Walters, Director</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">U.S. Representative from California&rsquo;s 45th Congressional District
    &ndash; Retired</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Kenneth Young, President</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">President of B. Riley Financial, Inc., Chief Executive Officer of B. Riley
    Principal Investments, LLC</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Phillip J. Ahn, Chief Financial Officer and Chief Operating Officer</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Chief Financial Officer and Chief Operating Officer of B. Riley Financial,
    Inc.</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Alan N. Forman, Executive Vice President, General Counsel and Secretary</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Executive Vice President, General Counsel and Secretary of B. Riley Financial,
    Inc.</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">299 Park Avenue, 7th Floor <BR>New York, NY 10171</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; vertical-align: top">Howard E. Weitzman, Senior Vice President &amp; Chief Accounting Officer</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">Senior Vice President &amp; Chief Accounting Officer of B. Riley Financial,
    Inc.</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">21255 Burbank Blvd. <BR>Suite 400 <BR>Woodland Hills, CA 91367</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; vertical-align: top">Daniel Shribman, Chief Investment Officer</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">CFO, Director &amp; Principal Accounting Officer at B. Riley Principal Merger
    Corp., Chief Investment Officer for B. Riley Financial, Inc., and President for B. Riley Principal Investments LLC, a subsidiary
    of B. Riley Financial, Inc</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: left; vertical-align: top">299 Park Avenue, 7th Floor <BR>New York, NY 10171</TD><TD STYLE="text-align: left; vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top">United States</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 31.5pt"></P>


<!-- Field: Page; Sequence: 17; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->17<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B><U>SCHEDULE B</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Transactions within
the Past 60 Days</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Trade Date</TD><TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Buy/Sell</TD><TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Amount of Securities</TD><TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Price per Share of Common
    Stock</TD><TD STYLE="font-weight: bold">&nbsp;</TD><TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Reporting Person</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 20%; text-align: center">30-Oct-19</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 18%; text-align: center">Sell</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 18%; text-align: right">11,265</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 15%; text-align: right">2.65</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 23%; text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">200</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.67</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">500</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.66</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">200</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.6701</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Buy</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">200</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.71</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Buy</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">100</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.695</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Buy</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">200</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.7</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">1,500</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.705</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Buy</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">25,000</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.7</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">600</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.705</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">500</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.7025</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">330</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.71</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">400</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.805</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">1,000</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.8001</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">8,105</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.84</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">30-Oct-19</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">Sell</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">900</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">2.835</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">B. Riley FBR, Inc.</TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 18; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->18<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0"><B><U><A NAME="n1"></A>EXHIBIT 3</U></B></P>

<P STYLE="margin-top: 0; text-align: right; margin-bottom: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>B. Riley Principal Investments,
LLC</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>21255 Burbank Boulevard, Suite 400</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>Woodland Hills, CA 91367</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">October 23, 2017</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 4.05in 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 4.05in 0pt 0">Investec Investments (UK) Limited</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 4.05in 0pt 0">2 Gresham Street</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">London EC2V 7QP, England</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Attention of Maurice Hochschild</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dear Sirs:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Reference is made to the Amended and Restated
Loan and Security Agreement between East West Bank (&ldquo;<U>Senior Lender</U>&rdquo;) and Sonim Technologies, Inc. (&ldquo;<U>Borrower</U>&rdquo;),
dated as of January 22, 2016 (as amended and restated from time to time, the &ldquo;<U>Senior Loan Agreement</U>&rdquo;), and
to the Subordinated Term Loan and Security Agreement between Borrower and B. Riley Principal Investments, LLC (&ldquo;<U>BRPI</U>&rdquo;),
dated as of the date hereof (as amended and restated from time to time, the &ldquo;<U>Junior Loan Agreement</U>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Senior Lender and BRPI are party to a Subordination
Agreement dated as of the date hereof (as amended and restated from time to time, the &ldquo;<U>Subordination Agreement</U>&rdquo;).
Capitalized terms used herein which are not otherwise defined herein are given the meaning set forth in, or by reference in, the
Subordination Agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to the Subordination Agreement,
BRPI has the right to purchase (the &ldquo;<U>Purchase Right</U>&rdquo;) from Senior Lender all (but not less than all) of Senior
Lender&rsquo;s right, title, and interest in and to the Senior Debt at any time after: (i) acceleration of the Senior Debt which
is not rescinded; (ii) the commencement of an Enforcement Action by Senior Lender which is not rescinded, (iii) the passage of
a period of forty-five (45) days during the continuance of a Senior Default (which would permit acceleration) without forbearance
by Senior Lender (<U>provided</U> that during such forty-five (45) day period, Senior Lender agrees not to charge default interest
so long as each regularly scheduled interest payment on the Senior Debt is made (with interest on any late interest at the contract
rate) within five (5) Business Days after the date such regularly scheduled interest payment is due, and <U>provided</U>&nbsp;<U>further
</U>that if Senior Lender does not so agree to refrain from charging default interest, BRPI may exercise such purchase right on
the date of such Senior Default); or (iv) the commencement of any insolvency, reorganization or any case or proceeding involving
Borrower or any of its subsidiaries under any bankruptcy or insolvency law or laws relating to the relief of debtors (each event
described in clauses (iii) and (iv), but only so long as in the case of clause (iv), no plan of reorganization, stalking horse
bid or lift stay motion has been proposed in such proceeding, being a &ldquo;<U>Non-Emergency Purchase Right Trigger</U>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<!-- Field: Page; Sequence: 19; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->19<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BRPI agrees that it may not exercise the
Purchase Right based on a Non-Emergency Purchase Right Trigger without the prior written consent of Investec Investments (UK) Limited
(&ldquo;<U>Investec</U>&rdquo;), and that Investec shall be entitled to equitable relief as a remedy for any breach or threatened
breach of this approval requirement, that Investec shall not be required to post any bond or similar instrument in connection with
or as a condition to obtaining such a remedy, and that it will not assert as a defense to any action for equitable relief that
a damages remedy would be adequate.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">If BRPI has purchased, or shall have the
right to purchase, the Senior Loan as aforesaid during the period from the date of this Agreement until the Response Period Termination
Date (as defined below), BRPI agrees that it shall offer to Investec, Waveland Capital Partners LLC and Verdoso Investments S.
A. (collectively, the &ldquo;<U>Offerees</U>&rdquo;), the right (which may, in the discretion of each Offeree, be exercised by one
or more affiliate nominees) to purchase undivided pro rata participation interests (the &ldquo;<U>Participation Interests</U>&rdquo;),
in up to 50% (or such higher percentage as BRPI shall determine in its sole discretion) of each of the Senior Debt and the Junior
Debt (the &ldquo;<U>Participating Debt</U>&rdquo;) pursuant to the form of participation agreement attached hereto as Exhibit A (each,
a &ldquo;<U>Participation Agreement</U>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BRPI agrees to notify Investec and the
other Offerees promptly after BRPI becomes aware that the Purchase Right is exercisable, stating the then amount of the Participating
Debt known to it and the percentage (not less than 50%) of the Participating Debt offered to the Offerees (the &ldquo;<U>Participation
Offer</U>&rdquo;) and specifying a response date which shall be at least thirty (30) days from the date of the Participation Offer
but which may be extended by BRPI by notice to all Offerees (the &ldquo;<U>Response Date</U>&rdquo;) for acceptance of the Participation
Offer; such offering period, plus the five Business Day additional response period, if applicable, provided in the third following
paragraph, being the &ldquo;<U>Response Period</U>&rdquo;). The Offerees shall thereupon have the right, but not the obligation,
to purchase such Participation Interests at par (or, if for any reason, BRPI purchases the Senior Debt from Senior Lender for less
than par, at such price for the Senior Debt portion of the Participating Debt, and at par for the Junior Debt portion) for payment
in immediately available funds as provided herein. During the Response Period and if one more Offerees elect to purchase Participating
Interests, during the period commencing on the expiration of the Response Period and ending on the Purchase Date, BRPI will not
initiate or pursue any Enforcement Action or continue any Enforcement Action that Senior Lender initiated prior to BRPI&rsquo;s purchase
of the Senior Debt, except with the prior written consent of Investec or as provided in the proviso to Section 3(a) of the Subordination
Agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">An Offeree electing to purchase a Participation
Interest shall provide a written notice to BRPI (a &ldquo;<U>Committed Participation Notice</U>&rdquo;) prior to the Response
Date specifying the percentage Participation Interest which such Offeree wishes to purchase. Upon delivering a Committed Participation
Notice to BRPI, the Offeree shall be irrevocably committed to acquire from BRPI, and BRPI shall be irrevocably committed to sell
to such Offeree or its affiliate nominee, a Participation Interest up to the percentage subscribed for by such Offeree on the
fifth Business Day following the Response Date (the &ldquo;<U>Purchase Date</U>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<!-- Field: Page; Sequence: 20; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->20<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="text-decoration: none">If
Offerees subscribe for more than the total percentage of Participation Interests offered, such offers shall be pro-rated to each
Offeree based on its subscribed percentage proportionate to the subscribed percentages of all Offerees.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="text-decoration: none">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">If Offerees do not subscribe by the Response
Date for the total percentage of Participation Interests offered by BRPI hereunder, then BRPI shall thereupon promptly notify each
Offeree who exercised its Participation Interest purchase right. Such Offerees shall have the option, during the five (5) Business
Day period commencing on the date of such notice from BRPI (the fifth Business Day after such notice being the &ldquo;<U>Response
Period Termination Date</U>&rdquo;), to elect by additional Committed Participation Notices to purchase all or any part of the unsubscribed
balance of the total percentage Participation Interests offered by BRPI hereunder.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The purchase price for each Participation
Interest (each a &ldquo;<U>Purchase Price</U>&rdquo;) shall be notified by BRPI to each Offeree one Business Day prior to the Purchase
Date (and shall include interest calculated to accrue through the Purchase Date). On the Purchase Date, each Offeree shall make
payment to BRPI in immediately available funds by federal funds wire transfer of its Purchase Price and shall execute and deliver
the Participation Agreement with BRPI substantially in the form of Exhibit A hereto. Upon making such payment and execution of
the Participation Agreement, an Offeree shall be a &ldquo;<U>Participant</U>&rdquo;.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BRPI shall retain undivided Participation
Interests in the portion of the Participating Debt not purchased by the Offerees for its own account (&ldquo;the &ldquo;<U>Retained
Interest</U>&rdquo;) and may sell such Participation Interests from the Retained Interest as permitted by the Participation Agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In exercising the Purchase Right, BRPI
is obligated (i) to reimburse Senior Lender for any loss or cost damage incurred by Senior Lender as a result of any checks or
other payments provisionally credited to the Senior Debt, and/or as to which Senior Lender has not yet received final payment,
but only to the extent that a claim is made by Senior Lender to BRPI in writing (together with supporting documentation of such
loss, cost or damage reasonably acceptable to BRPI) within thirty (30) days after the sale of the Senior Debt to BRPI and (ii)
to the extent included in such transfer, to provide cash collateral to Senior Lender in such amounts as is reasonably necessary
to fully cash secure any outstanding ancillary services (such as letters of credit, ACH transactions, f/x transactions, and credit
cards) under the documents evidencing the Senior Debt. Pursuant to its Participation Interest, each Purchasing Offeree shall be
liable for its pro rata share of such reimbursements and cash collateral to the extent not included in the Purchase Prices.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">BRPI agrees not to delete, surrender or
amend the Purchase Right in any matter which would disable BRPI from being able to offer the Participation Interests to the Offerees
as provided herein.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">This Letter Agreement shall be governed by
the laws of the State of California without regard to its choice of law provisions and may be executed in two or more counterparts,
each of which shall be deemed an original, but all of which together shall constitute one instrument. No provision of this Letter
Agreement may be amended or waived without the written consent of BRPI and Investec.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 21; Value: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->21<!-- Field: /Sequence --></P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Please confirm your agreement to the forgoing by executing a
counterpart of this Letter Agreement and returning it to me.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">Very Truly Yours,</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>B. RILEY PRINCIPAL INVESTMENTS, LLC</B></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>By</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid">/s/ Kenneth Young</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 5%">Name:&nbsp;</TD>
    <TD STYLE="width: 35%"> Kenneth Young</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>CEO</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><U>ACCEPTED AND AGREED AS OF</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><U>THE DATE FIRST ABOVE WRITTEN:</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>INVESTEC INVESTMENTS (UK) LIMITED</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%">By</TD>
    <TD STYLE="width: 35%; border-bottom: Black 1.5pt solid">/s/ Andrew Nosworthy</TD>
    <TD STYLE="width: 20%">&nbsp;</TD>
    <TD STYLE="width: 40%; border-bottom: Black 1.5pt solid">/s/ Andrew Neill</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>Name:&nbsp; </TD>
    <TD>Andrew Nosworthy</TD>
    <TD>&nbsp;</TD>
    <TD>Andrew Neill</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>Title: </TD>
    <TD>Authorised Signatory</TD>
    <TD>&nbsp;</TD>
    <TD>Authorised Signatory</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">22</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
