2BDZJ-BQ70wireless headphone

wireless headphone FCC Caution: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference , and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

2.911(d)(5)(i)EquipmentTypeAttestationv1.2 DongguanYandeElectronicTechnologyCo.,Ltd Section2.911(d)(5)(i)Certification–EquipmentType Companyname:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone FCCID:2BDZJ-BQ70 Model(s):BQ70 2.911(d)(5)(i)EquipmentType We,[DongguanYandeElectronicTechnologyCo.,Ltd]certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot: Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules. Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:shiguanliangDate:09-27-2024 TitleandCompanyname:manager/DongguanYandeElectronicTechnologyCo.,Ltd NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

2.911(d)(5)(ii)ApplicantAttestationv1.3 DongguanYandeElectronicTechnologyCo.,Ltd Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone FCCID:2BDZJ-BQ70 Model(s):BQ70 2.911(d)(5)(ii)Applicantfiling We,[DongguanYandeElectronicTechnologyCo.,Ltd]certifythat,asofthedateofthefilingof theapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,established pursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:shiguanliangDate:09-27-2024 TitleandCompanyname:manager/DongguanYandeElectronicTechnologyCo.,Ltd NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

DongguanYandeElectronicTechnologyCo.,Ltd U.S.AgentLetterofAttestation To:FederalCommunicationsCommission 7435OaklandMillsRoad,Columbia,MD21046,USA Date:09-27-2024 Ref: AttestationStatement–Part 2.911(d)(7)filing FCCID:2BDZJ-BQ70 DongguanYandeElectronicTechnologyCo.,Ltdcertifiesthat,asofthedateofthefilingofthe application,THREESTONESMEDIALLCisourdesignatedU.S.agentforserviceofprocessfor theabovereferenceFCCID.Theapplicantacceptstomaintainanagentforserviceofprocessin theUnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminatedall marketingandimportationoftheapplicableequipmentwithintheU.S.,ortheconclusionofany Commission-relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheverislater. TheapplicantfurtheracknowledgesitisourresponsibilitytoinformtheFCCwhenevertheagent informationchanges. THREESTONESMEDIALLCunderstanditistheagent'sobligationtoacceptserviceofprocessin theUnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S.address andemailaddress. DesignatedU.S.Agent CompanyName: THREESTONESMEDIALLC FRN:0033401761 GC:2A99E Address: 1200BroadwaySt.APT329,LosAngeles,CA90015 Signature: ContactPerson:SijieZhang Tel:+12679093692Email:[email protected] Applicant CompanyName:DongguanYandeElectronicTechnologyCo.,Ltd Address: Room508,Building3,No.19JinpengRoad, FenggangTown,DongguanCity,Guangdong Province,China Signature: ContactPerson:shiguanliang FRN:0034596106 GC:2BDZJ Email:[email protected]

DongguanYandeElectronicTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:09-27-2024 Subject;RequestforConfidentiality FCCID:2BDZJ-BQ70 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure 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:shiguanliang Title:manager

DongguanYandeElectronicTechnologyCo.,Ltd LetterofAuthorization Company:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone ModelNumber(s):BQ70 ProductDescription:wirelessheadphone WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:09-27-2024 Name:shiguanliang Title:manager Company:DongguanYandeElectronicTechnologyCo.,Ltd

FCCID:2BDZJ-BQ70 FCCID:2BDZJ-BQ70 FCCID:2BDZJ-BQ70 FCCID:2BDZJ-BQ70

FCCID:2BDZJ-BQ70 Label Size:10mm*8mm FCCID:2BDZJ-BQ70 LabelLocation

FCCID:2BDZJ-BQ70 FCCID:2BDZJ-BQ70 FCCID:2BDZJ-BQ70 ANT FCCID:2BDZJ-BQ70

RFExposureevaluation FCCID2BDZJ-BQ70 ProductNamewirelessheadphone ModelNo.BQ70 ListedModel(s)-- ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypePortableDevice 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,handsets,laptops&tabletsetc.23” [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤ 1.0. 3.ConductedPeakOutputPower ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSKBLE1M 01.121.29 190.111.03 39-0.840.82 4.ManufacturingTolerance BLE1M ChannelChannel0Channel19Channel39 Target(dBm)100 Tolerance±(dB)1.01.01.0 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE2.40252 1.58 0.4913<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498D01V06. ------Endofthereport------

Manufacturer:Dongguan Yande Electronic Technology Co., Ltd Address:Room 508, Building 3, No. 19 Jinpeng Road, Fenggang Town, Dongguan City, Guangdong Province, China Model BQ70 VSWR 3D Radiation Pattern： Test enviroment： Room temperature ：25°C Humidity：40％ Test schematic： 2400MHz 2450MHz Passive Performance 2500MHz : Frequency (MHz) Total Gain （dBi） Efficiency (%) 2400 -0.2145.08 2450 0.4446.13 2500 -0.0435.32

ReportNo.:CISRR240911099 —1— AppendixA ReportNo.: CISRR240911099 FCCID: 2BDZJ-BQ70 ProductName: wirelessheadphone ModelNo.:BQ70 TestEngineer:LucasHuang Supervisedby:RoryHuang ReportNo.:CISRR240911099 —2— 1)DutyCycle TestResult ModeChannelOnTime(ms)Period(ms)DutyCycle(%) DutyCycle (linear) DutyCycle Factor(dB) 1/T BLE1M 02.1332.49985.370.85370.68690.47 192.1342.50085.370.85370.6869 0.47 392.1332.49985.370.85370.6869 0.47 TestGraphs BLE1M_Channel0 ReportNo.:CISRR240911099 —3— BLE1M_Channel19 BLE1M_Channel39 ReportNo.:CISRR240911099 —4— 2)PowerSpectralDensity TestResult ModeChannelPSD(dBm/3kHz)Limit(dBm/3kHz)Result BLE1M0-15.73≤8PASS BLE1M19-17.23≤8PASS BLE1M39-17.91≤8PASS TestGraphs BLE1M_Channel0BLE1M_Channel19 BLE1M_Channel39 ReportNo.:CISRR240911099 —5— 3)ConductedPeakOutputPower TestResult ModeChannel PeakOutputPower (dBm) PeakOutputPower (mW) Limit (dBm) Result BLE1M 01.121.29≤30PASS 190.111.03≤30PASS 39-0.840.82≤30PASS TestGraphs PeakOutputPower BLE1M_Channel0 PeakOutputPower BLE1M_Channel19 PeakOutputPower BLE1M_Channel39 ReportNo.:CISRR240911099 —6— 4)99%Bandwidth TestResult ModeChannelCenterFrequency(MHz)99%BW(MHz) BLE1M024021.0302 BLE1M1924401.0320 BLE1M3924801.0320 TestGraphs BLE1M_Channel0BLE1M_Channel19 BLE1M_Channel39 ReportNo.:CISRR240911099 —7— 5)6dBBandwidth TestResult ModeChannel CenterFrequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result BLE1M 024020.6600 ≥0.5 PASS 1924400.6600PASS 3924800.6600PASS TestGraphs BLE1M_Channel0BLE1M_Channel19 BLE1M_Channel39 ReportNo.:CISRR240911099 —8— 6)ConductedOutOfBandEmission TestResult ModeChannel OOBEmission Frequency (MHz) OOBEmission Level (dBm) Limit (dBm) OverLimit (dB) Result BLE1M 0 2399.00-41.709-19.07-22.639PASS 2400.00-50.973-19.07-31.903PASS 7205.10-40.520-19.07-21.450PASS 197319.16-39.213-20.1-19.113PASS 39 2483.50-48.083-21.03-27.053PASS 7440.68-43.497-21.03-22.467PASS TestGraphs In-BandReferenceLevel BLE1M_Channel0 OutOfBandEmission BLE1M_Channel0 30.0MHz-25000.0MHz BLE1M_Channel0 In-BandReferenceLevel BLE1M_Channel19 ReportNo.:CISRR240911099 —9— 30.0MHz-25000.0MHz BLE1M_Channel19 In-BandReferenceLevel BLE1M_Channel39 OutOfBandEmission BLE1M_Channel39 30.0MHz-25000.0MHz BLE1M_Channel39

ReportNo.:CISRR240911099 Page:1of27 TESTREPORT ReportNo.:CISRR240911099 ProjectNo.CISR240911099 FCCID2BDZJ-BQ70 Applicant:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ManufacturerDongguanYandeElectronicTechnologyCo.,Ltd Address Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone TradeMark:-- Model/Typereference:BQ70 ListedModel(s):-- Standard:Part15SubpartCSection15.247 Testdate:September12,2024~September19,2024 IssuedateSeptember20,2024 Testresult:Complied Preparedby:RoryHuangApprovedby:GenryLong Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. ReportNo.:CISRR240911099 Page:2of27 Contents 1.REPORTVERSION.........................................................................................................................................3 2.SUMMARYOFTESTRESULT.......................................................................................................................4 3.SUMMARY.....................................................................................................................................................5 3.1.ProductDescription....................................................................................................................................5 3.2.RadioSpecificationDescription................................................................................................................5 3.3.ModificationofEUT.....................................................................................................................................6 3.4.TestingSite...................................................................................................................................................6 3.5.FieldStrengthCalculation..........................................................................................................................6 3.6.DISTURBANCECalculation........................................................................................................................6 4.TESTCONFIGURATION.............................................................................................................................7 4.1.Testfrequencylist.......................................................................................................................................7 4.2.Testmode.....................................................................................................................................................7 4.3.Supportunitusedintestconfigurationandsystem...............................................................................7 4.4.Testsampleinformation.............................................................................................................................7 4.5.Testingenvironmentalcondition...............................................................................................................8 4.6.Statementofthemeasurementuncertainty.............................................................................................8 4.7.EquipmentUsedduringtheTest...............................................................................................................9 5.TESTCONDITIONSANDRESULTS.....................................................................................................10 5.1.AntennaRequirement...............................................................................................................................10 5.2.ACConductedEmission...........................................................................................................................11 5.3.PeakOutputPower....................................................................................................................................14 5.4.6dBBandwidth..........................................................................................................................................15 5.5.99%OccupiedBandwidth.........................................................................................................................16 5.6.Powerspectraldensity..............................................................................................................................17 5.7.ConductedBandedgeandSpuriousEmission.....................................................................................18 5.8.RadiatedBandedgeEmission.................................................................................................................19 5.9.RadiatedSpuriousEmission....................................................................................................................21 5.10.DutyCycleCorrectionFactor(DCCF)...................................................................................................26 6.TESTSETUPPHOTOS............................................................................................................................27 7.EXTERNALANDINTERNALPHOTOSOFTHEEUT........................................................................27 7.1Externalphotos...........................................................................................................................................27 7.2Internalphotos............................................................................................................................................27 ReportNo.:CISRR240911099 Page:3of27 1.REPORTVERSION VersionNo.IssuedateDescription 00September20,2024Original ReportNo.:CISRR240911099 Page:4of27 2.SUMMARYOFTESTRESULT Report clause TestItemStandardRequirementResult 5.1AntennaRequirement15.203/15.247(c)PASS 5.2ACConductedEmission15.207PASS 5.3PeakOutputPower15.247(b)(3)PASS 5.46dBBandwidth15.247(a)(2)PASS 5.599%OccupiedBandwidth-PASS *1 5.6Powerspectraldensity15.2…

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FCCID:2BDZJ-BQ70 RadiatedEmission Below1GHz: Above1GHz: FCCID:2BDZJ-BQ70 ACConductedEmission