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    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_8E9BE8F2B76E3F6DF25897C3EDB22BDD_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_8E9BE8F2B76E3F6DF25897C3EDB22BDD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Initial purchase price, Divestiture</link:label>
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    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_4A621B3E625533AB75CC97BB62964627_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_4A621B3E625533AB75CC97BB62964627" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable, net of allowance for doubtful accounts of $539 at March 31, 2016 and $601 at December 31, 2015</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_D3DB632ED1FF4F71424B97BB6296B3A1_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_D3DB632ED1FF4F71424B97BB6296B3A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity [Abstract]</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_8405092B984B94F11CBD97BB629692DE_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_8405092B984B94F11CBD97BB629692DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current [Abstract]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_D3C51B291081BA548DC597BB6296D410" xlink:type="locator" />
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    <link:label id="lab_mifi_AmortizationOfInventoryFairValueAdjustment_E77A432681A82D72D6579BD2EB73E401_terseLabel_en-US" xlink:label="lab_mifi_AmortizationOfInventoryFairValueAdjustment_E77A432681A82D72D6579BD2EB73E401" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of acquisition-related inventory step-up</link:label>
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_CACF6F2747C66966D1979BD2EB73CD4F_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_CACF6F2747C66966D1979BD2EB73CD4F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for bad debts, net of recoveries</link:label>
    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_CACF6F2747C66966D1979BD2EB73CD4F_label_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_CACF6F2747C66966D1979BD2EB73CD4F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for Doubtful Accounts</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensation_F18CFD9B8FA1762F90039BD2EB732919_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_F18CFD9B8FA1762F90039BD2EB732919" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation expense</link:label>
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    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_2CA7F7B8C9AB1250BDB89BD2EB732BFD_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_2CA7F7B8C9AB1250BDB89BD2EB732BFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
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