2BB3W-M9wireless lavalier microphone

Bluetooth

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:UUXGROUPINC FRN:0033701590 ContactName:JackFu Address:36South18thAvenue,SuiteABrighton,CO80601UnitedStates TelephoneNo:(213)375-3998 Email:[email protected] Applicant: Companyname:ShenZhenZhiWeiTechnologyCo.,Ltd ProductDescription: wirelesslavaliermicrophone FRN:0034003541 Granteecode:2BB3W FCCID:2BB3W-M9 ContactName:mengqiyang Address:6thFloor,Bld8,LijinchengIndustrialParkLonghuaStreet,LonghuaDistrict,shenzhen, China TelephoneNo:+8613631597057 Email:[email protected] [ShenZhenZhiWeiTechnologyCo.,Ltd]certifiesthat,asofthedateofthis filingoftheapplicationwiththeTCB,[UUXGROUPINC]isourdesignatedUS agentforserviceofprocessfortheabovereferencedFCCID.[ShenZhen ZhiWeiTechnologyCo.,Ltd]acceptstomaintainanagentfornolessthanone yearafterthegranteehasterminatedallmarketingandimportationorthe conclusionofanycommissionrelatedproceedinginvolvingequipment.[UUX GROUPINC]accepts,asofthedateofthefilingoftheapplication,the obligationofthedesignatedUSagentforserviceofprocessfortheabove referenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:2024-08-01 Applicant’sName:mengqiyangUSAgent’sName:JackFu Title:ManagerTitle:Manager SignatureSignature

C5266091_X24_Ed.2 1/1 ShenZhenZhiWeiTechnologyCo.,Ltd “AttestationStatements” TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 TheCommissionadoptedrulesthatprohibitequipmentauthorizationfor“covered” telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentitiesidentified ontheCommission’sCoveredList 1 ,whichisperiodicallyupdated.SeetheCoveredListformore details.ThisAttestationStatementistoconfirmthatwefollowtheSection2.911(d)(5)(i)-(ii) Applicant Companyname:ShenZhenZhiWeiTechnologyCo.,Ltd FRN:0034003541 Granteecode:2BB3W FCCID:2BB3W-M9 ContactName:mengqiyang Address:6thFloor,Bld8,LijinchengIndustrialParkLonghuaStreet,LonghuaDistrict,shenzhen, China TelephoneNo:+8613631597057 Email:[email protected] i.[ShenZhenZhiWeiTechnologyCo.,Ltd](“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules.Theapplicantmustsignthiscertification. ii.[ShenZhenZhiWeiTechnologyCo.,Ltd](“theapplicant”)certifiesthat,asof thedateofthefilingoftheapplication,theapplicant[isnot](asaspecifically namedentityoranyofitssubsidiariesoraffiliates)identifiedontheCovered Listasanentityproducing“covered”equipment.Theapplicantmustsign thiscertification. [ShenZhenZhiWeiTechnologyCo.,Ltd](“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicant[isnot]identifiedontheCovered Listasanentityproducing“covered”equipment. Date:August1,2024 Applicant’sName:mengqiyang Title:Manager Signature 1 TheCommission’sCoveredListispublishedbythePublicSafetyandHomelandSecurityBureauandpostedonthe Commission’swebsite.ThisCoveredList,whichisperiodicallyupdated,identifiesparticularequipment,producedby particularentities,thatconstitutes“covered”equipment.https://www.fcc.gov/supplychain/coveredlist

ShenZhenZhiWeiTechnologyCo.,Ltd ProductSimilarityDeclaration Productname:wirelesslavaliermicrophone Modelname:M9C9,M9Pro FCCID:2BB3W-M9 We(ShenZhenZhiWeiTechnologyCo.,Ltd)herebystatethatall themodelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign(i.e.,circuitdesign,PCBLayout, RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differenceisthemodelname. Signature: Name:MengqiYang Title:Manager Shenzhen,Aug.01,2024

C5266091_X8_Ed.1 1/1 LetterofAuthorization ShenZhenZhiWeiTechnologyCo.,Ltd Company:ShenZhenZhiWeiTechnologyCo.,Ltd Address:6thFloor,Bld8,LijinchengIndustrialParkLonghuaStreet,LonghuaDistrict, shenzhen,China ProductName:wirelesslavaliermicrophone ModelNumber:M9C9,M9Pro FCCIdentifier:2BB3W-M9 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:mengqiyangDate:2024-08-01 Title:Manager Signatureofapplicant:

C5266091_X10_Ed.2 1/1 ShenZhenZhiWeiTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2024-8-1 Subject:RequestforConfidentiality FCCID:2BB3W-M9 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodofdaysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, C5266091_X10_Ed.2 1/1 Signature: Name:mengqiyang Title:Manager

FCCID:2BB3W-M9 FCCID:2BB3W-M9 FCCID:2BB3W-M9 FCCID:2BB3W-M9 TX1： FCCID:2BB3W-M9 FCCID:2BB3W-M9 FCCID:2BB3W-M9 TX2： FCCID:2BB3W-M9 FCCID:2BB3W-M9

LabelLocation FCCID:2BB3W-M9

FCCID:2BB3W-M9 TX1: FCCID:2BB3W-M9 FCCID:2BB3W-M9 FCCID:2BB3W-M9 TX2: FCCID:2BB3W-M9 FCCID:2BB3W-M9 FCCID:2BB3W-M9 FCCID:2BB3W-M9

Page1of2 RFEXPOSUREEVALUATION FCCID:2BB3W-M9 ProductName:wirelesslavaliermicrophone ModelName:M9C9 Additionalmodelname:M9Pro DifferencesDescription:Onlythemodelnameisdifferent. BluetoothVersion:BT5.3BDR+EDR+BLE Operatingfrequency:2402-2480MHz NumbersofChannel: 79channelsforBDR+EDR 40channelsForDTS AntennaType:CeramicAntenna AntennaGain:1.75dBi TypeofModulation: GFSK,Π/4-DQPSK,8DPSKForDSS GFSK,ForDTS Powersupply: Input:DC5V1000mA Battery: Li-ionBattery:501518 RatedVoltage:3.8V RatedCapacity:120mAh HardwareVersion:N3115-TX-V1.0 SoftwareVersion:N/A Page2of2 StandardRequirement Accordingto§15.247(i)and§1.1307b(1),systemsoperatingundertheprovisionsofthis sectionshallbeoperatedinamannerthatensuresthatthepublicisnotexposedtoradio frequencyenergylevelsinexcessoftheCommission’sguidelines.SeeKDB447498D01 GeneralRFExposureGuidancev06,section4.3.1. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gSARextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison. Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤ 50mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion. RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,usingmeasurements orcomputersimulation.WhenroutineSARevaluationisnotrequired,portabletransmitters withoutputpowergreaterthantheapplicablelowthresholdrequireSARevaluationtoquality forTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTune UpPower (mW) Distance (mm) Calculation results Limit Operating Mode 2480 7.98 7.98 ± 17.90678652.49032432DH5 24807.287.28±16.72976752.1196093 BLE_2M AccordingtoKDB447498,nostand-alonerequiredforBTantenna,andnosimultaneousSAR measurementisrequired. Signature SimonPu Manager Date:2024-08-06

ReportNo.:PTC24070909602E-FC01 Page 1 of 96 FCCTESTREPORT FCCID:2BB3W-M9 Product:wirelesslavaliermicrophone ModelName:M9C9 Serialmodel:M9Pro Brand:N/A ReportNo.:PTC24070909602E-FC01 Preparedfor ShenZhenZhiWeiTechnologyCo.,Ltd 6thFloor,Bld8,LijinchengIndustrialParkLonghuaStreet,LonghuaDistrict,shenzhen, China Preparedby PreciseTesting&CertificationCo.,Ltd. Building1,No.6,TongxinRoad,DongchengStreet,Dongguan,Guangdong,China ReportNo.:PTC24070909602E-FC01 Page 2 of 96 1TESTRESULTCERTIFICATION Applicant’sname:ShenZhenZhiWeiTechnologyCo.,Ltd Address: 6thFloor,Bld8,LijinchengIndustrialParkLonghuaStreet,Longhua District,shenzhen,China Manufacture's name :ShenZhenZhiWeiTechnologyCo.,Ltd Address: 6thFloor,Bld8,LijinchengIndustrialParkLonghuaStreet,Longhua District,shenzhen,China Productname:wirelesslavaliermicrophone Modelname:M9C9 Serialmodel:M9Pro Standards:FCCCFR47Part15Section15.247 Testprocedure:ANSIC63.10:2013 TestDate:Jul.17,2024toAug.06,2024 DateofIssue:Aug.06,2024 TestResult:Pass ThisdevicedescribedabovehasbeentestedbyPTC,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicable onlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofPTC,this documentmaybealteredorrevisedbyPTC,personalonly,andshallbenotedinthe revisionofthedocument. TestEngineer: Jackzhou/Engineer TechnicalManager: SimonPu/Manager ReportNo.:PTC24070909602E-FC01 Page 3 of 96 Contents Page 1TESTRESULTCERTIFICATION...............................................................................................................................2 2TESTSUMMARY..........................................................................................................................................................5 3TESTFACILITY.............................................................................................................................................................5 4GENERALINFORMATION..........................................................................................................................................6 4.1GENERALDESCRIPTIONOFE.U.T.....................................................................................................................6 4.2TESTMODE.........................................................................................................................................................7 5EQUIPMENTDURINGTEST......................................................................................................................................9 5.1EQUIPMENTSLIST...............................................................................................................................................9 5.2MEASUREMENTUNCERTAINTY.........................................................................................................................11 5.3DESCRIPTIONOFSUPPORTUNITS...................................................................................................................12 6CONDUCTEDEMISSION..........................................................................................................................................13 6.1E.U.T.OPERATION............................................................................................................................................13 6.2EUTSETUP.......................................................................................................................................................13 6.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).................................................................................14 6.4MEASUREMENTPROCEDURE:...........................................................................................................................14 6.5CONDUCTEDEMISSIONLIMIT...........................................................................................................................14 6.6MEASUREMENTDESCRIPTION..........................................................................................................................14 6.7CONDUCTEDEMISSIONTESTRESULT.............................................................................................................14 7RADIATEDSPURIOUSEMISSIONS......................................................................................................................17 7.1EUTOPERATION...............................................................................................................................................17 7.2TESTSETUP......................................................................................................................................................18 7.3SPECTRUMANALYZERSETUP..........................................................................................................................19 7.4TESTPROCEDURE.............................................................................................................................................20 7.5SUMMARYOFTESTRESULTS...........................................................................................................................21 8MAXIMUMPEAKOUTPUTPOWERTEST............................................................................................................28 8.1TESTSTANDARDANDLIMIT..............................................................................................................................28 8.2TESTSETUP......................................................................................................................................................28 8.3TESTPROCEDURE.............................................................................................................................................28 8.4TESTDATA.........................................................................................................................................................29 ReportNo.:PTC24070909…

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FCCID:2BB3W-M9 ConductedEmissions RadiatedEmissions From30M-1GHz FCCID:2BB3W-M9 Above1GHz