2ABMRCA1Connect Air Bluetooth Audio Transmitter

S2E,Inc. AgentAuthorization Company:S2E,Inc. Address:817LawsonSt.CityofIndustry,CA91748,UnitedStates ProductName:ConnectAirBluetoothAudioTransmitter TradeMark:MEEaudio ModelNumber(s):AF-CA1 FCCID:2ABMRCA1 WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2021-5-24 Name:MartieShieh Title:Manager Company:S2E,Inc.

S2E,Inc. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2021-5-24 Subject;RequestforConfidentiality FCCID:2ABMRCA1 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:MartieShieh Title:Manager

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 EXTERIORPHOTOGRAPHS Fig.1 Fig.2 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Fig.3 Fig.4 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Fig.5 Fig.6

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of1 LabelandLocation Size:L2.0cm*W1.5cm LabelLocation ConnectAir BluetoothAudioTransmitter Model:AF-CA1 FCCID:2ABMRCA1

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 INTERIORPHOTOGRAPHS Fig.1 Fig.2 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Fig.3 Fig.4 BTAntenna SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Fig.5 Fig.6 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Fig.7

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 4 MaximumPermissibleExposureReport 1.ProductInformation FCCID:2ABMRCA1 Productname ConnectAirBluetoothAudioTransmitter TestModel AF-CA1 Powersupply Input:DC5V DC3.7VbyRechargeableLi-ionBattery,220mAh Operationfrequency 2402MHz-2480MHz AntennaTypeInternalAntenna AntennaGain1.72dBi(Max.) Hardwareversion V2.0 Softwareversion V26 ChannelNumber 79ChannelsforBluetoothV5.0(DSS) 40channelsforBluetoothV5.0(DTS) ChannelSpacing 1MHzforBluetoothV5.0(DSS) 2MHzforBluetoothV5.0(DTS) ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypeMobileDevice 2.EvaluationMethod SystemsoperatingundertheprovisionsofFCC47CFRsectionshallbeoperatedinamannerthatensuresthatthepublic isnotexposedtoradiofrequencyenergylevelinexcessoftheCommission’sguidelines. Inaccordancewith47CFRFCCPart2SubpartJ,section2.1091thisdevicehasbeendefinedasmobiledevicewhereby adistanceof0.2mnormallycanbemaintainedbetweentheuserandthedevice,andbelowRFPermissibleExposure limitshallcomplywith. InaccordancewithKDB447498D01forSimultaneoustransmissionMPEtestexclusionapplieswhenthesumofthe MPEratiosforallsimultaneoustransmittingantennasincorporatedinahostdevice,basedonthecalculated/estimated, numericallymodelledormeasuredfieldstrengthsorpowerdensity,is≤1.0.TheMPEratioofeachantennais determinedattheminimumtestseparationdistancerequiredbytheoperatingconfigurationsandexposureconditionsof thehostdevice,accordingtotheratiooffieldstrengthsorpowerdensitytoMPElimit,atthetestfrequency.Eitherthe maximumpeakorspatiallyaveragedresultsfrommeasurementsornumericalsimulationsmaybeusedtodeterminethe MPEratios.SpatialaveragingdoesnotapplywhenMPEisestimatedusingsimplecalculationsbasedonfar-field plane-waveequivalentconditions.Theantennainstallationandoperatingrequirementsforthehostdevicemustmeetthe minimumtestseparationdistancesrequiredbyallantennas,inbothstandaloneandsimultaneoustransmissionoperations, tosatisfycompliance. 3.Limit 3.1ReferEvaluationMethod ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01General1RFExposureGuidancev06:MobileandPortableDevicesRFExposure ProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1091:Radiofrequencyradiationexposureevaluation:mobiledevices SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 4 3.2Limit LimitsforMaximumPermissibleExposure(MPE)/ControlledExposure Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm²) AveragingTime (minute) LimitsforOccupational/ControlledExposure 0.3–3.0 3.0–30 30–300 300–1500 1500–100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100)* (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 LimitsforMaximumPermissibleExposure(MPE)/UncontrolledExposure Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm²) AveragingTime (minute) LimitsforOccupational/ControlledExposure 0.3–3.0 3.0–30 30–300 300–1500 1500–100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100)* (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequencyinMHz *=Plane-waveequivalentpowerdensity 4.MPECalculationMethod PredicationofMPElimitatagivendistance Equationfrompage18ofOETBulletin65,Edition97-01 S=PG/4πR² Where:S=powerdensity P=powerinputtoantenna G=powergainoftheantennainthedirectionofinterestrelativetoanisotropicradiator R=distancetothecenterofradiationoftheantenna 5.ConductedPower <BT> ModeChannelFrequency(MHz) PeakConducted OutputPower (dBm) GFSK 024028.173 3924419.325 7824809.268 π/4DQPSK 024027.366 3924418.557 7824808.187 8DPSK 024027.550 3924418.750 7824808.430 <BTLE> ModeChannelFrequency(MHz) ConductPeak Power(dBm) GFSK 024023.276 1924404.763 3924803.236 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 3 of 4 6.MeasurementResults <BT> GFSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)8.09.09.0 Tolerance±(dB)1.01.01.0 π/4DQPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)7.08.08.0 Tolerance±(dB)1.01.01.0 8DPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)7.08.08.0 Tolerance±(dB)1.01.01.0 <BTLE> GFSK–BTLE(Peak) ChannelChannel0Channel39Channel78 Target(dBm)3.04.03.0 Tolerance±(dB)1.01.01.0 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 4 of 4 7.EvaluationResults AsdeclaredbytheApplicant,theEUTisawirelessdeviceusedinafixapplication,atleast20cmfromanybodypartof theuserornearbypersons;fromthemaximumEUTRFoutputpower,theminimumseparationdistance,r=20cm,as wellasthegainoftheusedantennarefertoantennainformation,theRFpowerdensitycanbeobtained. <BT> Band/Modef(GHz) RFoutputpower Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm2) MPE Limits (mW/cm2) dBmmW GFSK2.44110.0 10.0 1.72 1.4859 0.0030 1.0000 π/4DQPSK2.4419.0 7.9433 1.72 1.48590.0023 1.0000 8DPSK2.4419.0 7.9433 1.72 1.48590.0023 1.0000 <BLE> Band/Modef(GHz) RFoutputpower Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm2) MPE Limits (mW/cm2) dBmmW GFSK2.4405.0 3.1623 1.72 1.4859 0.0009 1.0000 Remark: 1.Outputpowerincludingturn-uptolerance; 2.Outputpowerisburstaveragepower; 3.MPEevaluatedistanceis20cmfromusermanualprovidebymanufacturer; 4.MPEvalues=PG/4πR² 8.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1091fortheuncontrolledRFExposureofmobile device. ----------------THEENDOFREPORT---------------

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page1of14 AppendixB RFTestDataforBLEV5.0(BDR/EDR)(ConductedMeasurement) ProductName:ConnectAirBluetoothAudioTransmitter TradeMark:MEEaudio TestModel:AF-CA1 EnvironmentalConditions Temperature: 24.2  C RelativeHumidity:54.1% ATMPressure:100.0kPa TestEngineer: JayLi Supervisedby:LiHuan B.1DutyCycle TestModeTestChannelAntDutyCycle[%]Verdict BTLE2440Ant1100PASS #imgrbble1hchnnav SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page2of14 B.2MaximumConductedPeakOutputPower ModeChannelConductPeakPower[dBm]Limit[dBm]Verdict BTLELCH3.27630PASS BTLEMCH4.76330PASS BTLEHCH3.23630PASS TestGraphs LCH MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page3of14 HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page4of14 B.3MaximumPowerSpectralDensity ModeChannelPSD[dBm/3KHz]Limit[dBm/3KHz]Verdict BTLELCH-11.9708PASS BTLEMCH-9.9708PASS BTLEHCH-11.5338PASS TestGraphs LCH MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page5of14 HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page6of14 B.46dBBandwidth ModeChannel6dBBandwidth[MHz]Limit[MHz]Verdict BTLELCH0.6693 ≥0.5 PASS BTLEMCH0.6659 ≥0.5 PASS BTLEHCH0.6700 ≥0.5 PASS TestGraphs LCH MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page7of14 HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page8of14 B.6RFConductedSpuriousEmissions ModeChannelPref[dBm]Max.Level[dBm]Limit[dBm]Verdict BTLELCH2.726-37.531-17.274PASS BTLEMCH4.248-37.336-15.752PASS BTLEHCH2.698-36.931-17.302PASS BTLE_LCH_Graphs Pref/BTLE/LCH Puw/BTLE/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page9of14 BTLE_MCH_Graphs Pref/BTLE/MCH Puw/BTLE/MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page10of14 BTLE_HCH_Graphs Pref/BTLE/HCH Puw/BTLE/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page11of14 B.7Band-edgeforRFConductedEmissions ModeChannelCarrierPower[dBm] Max.SpuriousLevel [dBm] Limit[dBm]Verdict BTLELCH2.870-49.751-17.13PASS BTLEHCH2.812-49.600-17.19PASS TestGraphs LCH HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page12of14 B.8Restrict-bandband-edgemeasurements Test Mode Test Chann el AntFreq. Power [dBm] Gain Ground Factor E [dBuV/m] Detector Limit [dBuV/ m] Verdi ct BTLE 2402 Ant12310.0-42.022.0053.24PEAK74PASS Ant12310.0-53.212.0042.05AV54PASS Ant12390.0-42.942.0052.32PEAK74PASS Ant12390.0-52.902.0042.36AV54PASS 2480 Ant12483.5-42.162.0053.10PEAK74PASS Ant12483.5-52.332.0042.93AV54PASS Ant12500.0-41.292.0053.97PEAK74PASS Ant12500.0-52.192.0043.07AV54PASS SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page13of14 Restrict-bandband-edgemeasurements_BTLE_2402_Ant1_PEAK Restrict-bandband-edgemeasurements_BTLE_2402_Ant1_AV SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Page14of14 Restrict-bandband-edgemeasurements_BTLE_2480_Ant1_PEAK Restrict-bandband-edgemeasurements_BTLE_2480_Ant1_AV

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page1of33 FCCTESTREPORT For S2E,Inc. ConnectAirBluetoothAudioTransmitter TestModel:AF-CA1 Preparedfor:S2E,Inc. Address:817LawsonSt.CityofIndustry,CA91748,UnitedStates Preparedby:ShenzhenLCSComplianceTestingLaboratoryLtd. Address: 101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China Tel:(+86)755-82591330 Fax:(+86)755-82591332 Web:www.LCS-cert.com Mail:[email protected] Dateofreceiptoftestsample:April30,2021 Numberoftestedsamples:2 SampleNo.:210427122A-1,210427122A-2 Serialnumber:Prototype DateofTest:April30,2021~May13,2021 DateofReport:May17,2021 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page2of33 FCCTESTREPORT FCCCFR47PART15C(15.247) ReportReferenceNo......................:LCS210427122AEB DateofIssue.......................................: May17,2021 TestingLaboratoryName..............:ShenzhenLCSComplianceTestingLaboratoryLtd. Address................................................: 101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China TestingLocation/Procedure............ : FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName.............................: S2E,Inc. Address................................................:817LawsonSt.CityofIndustry,CA91748,UnitedStates TestSpecification Standard..............................................: FCCCFR47PART15C(15.247) TestReportFormNo......................:LCSEMC-1.0 TRFOriginator....................................:ShenzhenLCSComplianceTestingLaboratoryLtd. MasterTRF.........................................:Dated2011-03 ShenzhenLCSComplianceTestingLaboratoryLtd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenLCSComplianceTestingLaboratoryLtd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenLCSComplianceTestingLaboratoryLtd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoitsplacement andcontext. EUTDescription...............................:ConnectAirBluetoothAudioTransmitter TradeMark.........................................................................................................................................................: MEEaudio TestModel..........................................................................................................................................................:AF-CA1 Ratings................................................................................................................................................................: Input:DC5V DC3.7VbyRechargeableLi-ionBattery,220mAh Result..................................................:Positive Compiledby:Supervisedby:Approvedby: ScentHu/AdministratorsJinWang/TechniqueprincipalGavinLiang/Manager SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page3of33 FCC--TESTREPORT TestModel...........................:AF-CA1 EUT.........................................:ConnectAirBluetoothAudioTransmitter Applicant...............................: S2E,Inc. Address..................................:817LawsonSt.CityofIndustry,CA91748,UnitedStates Telephone...............................: / Fax..........................................: / Manufacturer........................:ShenzhenAoniElectronicCo.,Ltd Address...................................: No.5,Bldg.,HonghuiIndustrialPark,2ndLiuxianRoad BaoanDistrict,Shenzhen,China518101. Telephone...............................: / Fax..........................................: / Factory...................................:ShenzhenAoniElectronicCo.,Ltd Address...................................: No.5,Bldg.,HonghuiIndustrialPark,2ndLiuxianRoad BaoanDistrict,Shenzhen,China518101. Telephone...............................:/ Fax..........................................:/ TestResultPositive Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCS210427122AEB May17,2021 Dateofissue SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page4of33 RevisionHistory RevisionIssueDateRevisionsRevisedBy 000May17,2021InitialIssueGavinLiang SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1ReportNo.:LCS210427122AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page5of33 TABLEOFCONTENTS 1.GENERALINFORMATION.....................................................................................................................................................6 1.1.DESCRIPTIONOFDEVICE(EUT)........................................................................................................................................6 1.2.HOSTSYSTEMCONFIGURATIONLISTANDDETAILS..........................................................................................................6 1.3.EXTERNALI/OCABLE..........................................................................................................................................................6 1.4.DESCRIPTIONOFTESTFACILITY........................................................................................................................................6 1.5.STATEMENTOF…

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SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 _______________________________________________________________________________________________ TESTSETUPPHOTOGRAPHS PhotoofRadiatedEmissionsMeasurement Below1GHz Above1GHz SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2ABMRCA1 _______________________________________________________________________________________________ PowerLineConductedEmission