2BKMB-EBGCNVHeadset

UserManual Headset M/N:EBGC-NV 1、Productphoto 2、Connectmethod ConnecttheheadsettotheiPhone.Aftertheheadsetispowered,itcanbeswitchedonandoff bypressingthebutton; AfterconnectingwiththeiPhone,longpressthepowerbuttontoturntheheadsetonandenter thepairingmode; InBluetoothmode,searchfor"EBGC-NV"andpairwithit; Afterpairing,youcanplaymusicandanswerphonecalls. Thevolumecanbeadjustedby+or-.

ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Room313,BuildingA,XiyuanfengCreativePark,No.29ShengbaoRoad,DanzhutouCommunity, NanwanStreet,LonggangDistrict,Shenzhen FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 9/9/24 U.S.AgentDesignation ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd.acknowledgestheirconsentforthe followingcontactlocatedintheUnitedStatestoactastheiragentforserviceofprocessforthe equipmentforwhichauthorizationissought(FCCID:2BKMB-EBGCNV): NameandcompanyofU.S.agent:STEYRINC PhysicalU.S.addressofagent:131217thStreet#692,Denver,CO80202,UnitedStates FRNofU.S.agent:0033737586 EmailaddressofU.S.agent:[email protected] ContactName:FairyLee Tel:(303)731-9873 STEYRINCacknowledgestheirobligationtoacceptserviceofprocessonbehalfofShenzhen ZhuoyueChengxuElectronicTechnologyCo.,Ltd. ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd.withtheFRN0035872530acceptsits obligationtomaintainanagentforserviceofprocessintheUnitedStatesfornolessthanoneyear aftereitherthegranteehaspermanentlyterminatedallmarketingandimportationoftheapplicable equipmentwithintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicial proceedinginvolvingtheequipment,whicheverislater. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirements listedunder§2.911(d)(7). TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRas wellaskDB986446D01. Anexpirationdateforthisletterdoesnotexist.incasetheUs.agentchangesthearanteeisoblicated tonotiftheFCCwithin30daysviathegrantingTCB. Sincerely, Signature Name:ChengweiHuang Title:Manager Company:ShenzhenZhuoyueChengxuElectronic TechnologyCo.,Ltd. Signature NameofU.S.agent:FairyLee TitleofU.S.agent:Manager CompanyofU.S.agent:STEYRINC 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5

Antennaspec AntennaDescription: Model2.4GANT Antennatype PCBantenna Frequencyrange2400MHz~2500MHz ManufacturerZHUHAIJIELITECHNOLOGYCO.,LTD Address333KexingRoad,XiangzhouDistrict,Zhuhai,Guangdong Province AntennaPhoto: AntennaEfficiencyandGain: Frequency(MHz)240024402480 Efficiency(%)53.4255.8157.23 PEAKGain(dBi)0.540.590.62

Effective Date: April 2, 2020 QSF 7.6.4-8 – Agent Authorization Letter Template Page 1 of 2 Revision Date: Revision: 0 Shenzhen Zhuoyue Chengxu Electronic Technology Co., Ltd. Date：08/30/2024 Product Model Number:EBGC-NV,SD-LC,CBLX-P5F,P19,P34,P49,P56,P100 FCC ID：2BKMB-EBGCNV To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Chengwei Huang Contact Listed on FCC Wesbite Title: MANAGER Email: [email protected] On behalf of: Shenzhen Zhuoyue Chengxu Electronic Technology Co., Ltd. Effective Date: April 2, 2020 QSF 7.6.4-8 – Agent Authorization Letter Template Page 2 of 2 Revision Date: Revision: 0

Shenzhen Zhuoyue Chengxu Electronic Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date:September 2, 2024 Subject; Request for Confidentiality FCC ID:2BKMB-EBGCNV To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04- 1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Chengwei Huang Title: MANAGER

ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Room313,BuildingA,XiyuanfengCreativePark,No.29Shengbao Road,DanzhutouCommunity,NanwanStreet,LonggangDistrict, Shenzhen Productdifferencesstatement DATE:Aug.29,2024 We,ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd.,Headsethasthese modelsEBGC-NV,SD-LC,CBLX-P5F,P19,P34,P49,P56,P100.Theseproductsareidenticalin interiorstructure,electricalcircuitsandcomponents,justmodelnamesandcoloraredifferent. Company:ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Address:Room313,BuildingA,XiyuanfengCreativePark,No.29ShengbaoRoad, DanzhutouCommunity,NanwanStreet,LonggangDistrict,Shenzhen Person:ChengweiHuang/Manager Tel:13352686623 E-mail:[email protected]

FCCID:2BKMB-EBGCNV labelandlocation Fig.1 FCCID:2BKMB-EBGCNV 4mm 6mm

Page 1 of 2 RFExposureevaluation FCCID:2BKMB-EBGCNV 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,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 ≤ 50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.3.Manufacturingtolerance BT(Peak) GFSK ChannelChannel00Channel39Channel78 Target(dBm)3.03.03.0 Tolerance±(dB)1.01.01.0 π/4DQPSK ChannelChannel00Channel39Channel78 Target(dBm)2.02.02.0 Tolerance±(dB)1.01.01.0 8DPSK ChannelChannel00Channel39Channel78 Target(dBm)2.02.02.0 Tolerance±(dB)1.01.01.0 Page 2 of 2 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BT2.48054.02.51190.7911<3.0Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06. .....................EndofReport.........................

ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd. 101#,BuildingK&BuildingT,TheSecondIndustrialZone,JiazitangCommunity, FenghuangStreet,GuangmingDistrict,Shenzhen,China FCCPART15SUBPARTCTESTREPORT FCCPART15.247 ReportReferenceNo........................: FCCID. ................................................ : GRCTR240802079-01 2BKMB-EBGCNV Compiledby (position+printedname+signature) .. : TestingEngineerJimmyWang Supervisedby (position+printedname+signature)..: ProjectEngineerKelleyZhang Approvedby (position+printedname+signature) .. : ManagerSamWang Dateofissue.........................................:Aug.28,2024 TestingLaboratoryName................: ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd. Address ................................................. : 101#,BuildingK&BuildingT,TheSecondIndustrialZone,Jiazitang Community,FenghuangStreet,GuangmingDistrict,Shenzhen,China Applicant’sname...............................: ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Address.................................................: Room313,BuildingA,XiyuanfengCreativePark,No.29Shengbao Road,DanzhutouCommunity,NanwanStreet,LonggangDistrict, Shenzhen Testspecification..............................: Standard................................................: FCCPart15.247 ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongastheShenzhen GUORENCertificationTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.takesnoresponsibilityforandwillnot assumeliabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription ........................ : Headset TradeMark ............................................ : / Manufacturer.........................................: ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Model/Typereference ......................... : EBGC-NV ListedModels ...................................... : SD-LC,CBLX-P5F,P19,P34,P49,P56,P100 FirmwareVersion ................................. :V1.0 HardwareVersion ................................ :V1.0 Modulation ........................................... : GFSK,Π/4DQPSK,8DPSK Frequency.............................................. From2402MHzto2480MHz Rating.....................................................:PoweredbyIPHONE Result ..................................................... : PASS ReportNo.:GRCTR240802079-01Page 2 of 43 TESTREPORT EquipmentunderTest:Headset Model/Type:EBGC-NV ListedModels:SD-LC,CBLX-P5F,P19,P34,P49,P56,P100 Applicant:ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Address: Room313,BuildingA,XiyuanfengCreativePark,No.29Shengbao Road,DanzhutouCommunity,NanwanStreet,LonggangDistrict, Shenzhen Manufacturer:ShenzhenZhuoyueChengxuElectronicTechnologyCo.,Ltd. Address: Room313,BuildingA,XiyuanfengCreativePark,No.29Shengbao Road,DanzhutouCommunity,NanwanStreet,LonggangDistrict, Shenzhen TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. ReportNo.:GRCTR240802079-01Page 3 of 43 Contents 1TESTSTANDARDS...................................................................................................................................4 2SUMMARY......................................................................................................................................................5 2.1GeneralRemarks...............................................................................................................................................5 2.2ProductDescription...........................................................................................................................................5 2.3EquipmentUnderTest.......................................................................................................................................5 2.4ShortdescriptionoftheEquipmentunderTest(EUT)..................................................................................5 2.5EUTconfiguration..............................................................................................................................................5 2.6EUToperationmode..........................................................................................................................................6 2.7BlockDiagramofTestSetup............................................................................................................................6 2.8RelatedSubmittal(s)/Grant(s)........................................................................................................................6 2.9Modifications......................................................................................................................................................6 3TESTENVIRONMENT.............................................................................................................................7 3.1Addressofthetestlaboratory..........................................................................................................................7 3.2TestFacility........................................................................................................................................................7 3.3Environmentalconditions.................................................................................................................................7 3.4Summaryofmeasurementresults...................................................................................................................8 3.5Statementofthemeasurementuncertainty....................................................................................................8 3.6EquipmentsUsedduringtheTest...................................................................................…

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ReportNo.:GRCTR240802079-01Page 27 of 43 Testplotasfollows: GFSKModulation DH1bursttime DH3bursttime DH5bursttime ReportNo.:GRCTR240802079-01Page 28 of 43 π/4DQPSKModulation 2-DH1bursttime 2-DH3bursttime 2-DH5bursttime ReportNo.:GRCTR240802079-01Page 29 of 43 8DPSKModulation 3-DH1bursttime 3-DH3bursttime 3-DH5bursttime ReportNo.:GRCTR240802079-01Page 30 of 43 4.8Out-of-bandEmissions Limit Inany100kHzbandwidthoutsidethefrequencybandinwhichthespreadspectrumordigitallymodulated intentionalradiatorisoperating,theradiofrequencypowerthatisproducedbytheintentionalradiatorshallbeat least20dBbelowthatinthe100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthedesired power,basedoneitheranRFcon-ductedoraradiatedmeasurement,pro-videdthetransmitterdemonstrates compliancewiththepeakconductedpowerlimits.Ifthetransmittercom-plieswiththeconductedpowerlimits basedontheuseofRMSaveragingoveratimeinterval,aspermittedunderparagraph(b)(3)ofthissection,the attenuationrequiredunderthisparagraphshallbe30dBinsteadof20dB.Attenuationbelowthegenerallimits specifiedin§15.209(a)isnotrequired. TestProcedure ConnectthetransmitteroutputtospectrumanalyzerusingalowlossRFcable,andsetthespectrumanalyzerto RBW=100kHz,VBW=300kHz,peakdetector,andmaxhold.Measurementsutilizingthesesettingaremadeof thein-bandreferencelevel,bandedgeandout-of-bandemissions. TestConfiguration EUT SPECTRUM ANALYZER TestResults Remark:Themeasurementfrequencyrangeisfrom30MHztothe10thharmonicofthefundamentalfrequency. Thelowest,middleandhighestchannelsaretestedtoverifythespuriousemissionsandbandagemeasurement data. Wemeasuredallconditions(DH1,DH3,DH5)andrecordedworstcaseatDH5. ReportNo.:GRCTR240802079-01Page 31 of 43 Testplotasfollows: GFSK(CH00) GFSK(CH39) reference reference 30MHz-1G30MHz-1G 1G-25G1G-25G ReportNo.:GRCTR240802079-01Page 32 of 43 GFSK(CH78)π/4DQPSK(CH00) referencereference 30MHz-1G30MHz-1G 1G-25G1G-25G ReportNo.:GRCTR240802079-01Page 33 of 43 π/4DQPSK(CH39)π/4DQPSK(CH78) referencereference 30MHz-1G30MHz-1G 1G-25G1G-25G ReportNo.:GRCTR240802079-01Page 34 of 43 8DPSK(CH00)8DPSK(CH39) referencereference 30MHz-1G30MHz-1G 1G-25G1G-25G ReportNo.:GRCTR240802079-01Page 35 of 43 8DPSK(CH78) reference 30MHz-1G 1G-25G ReportNo.:GRCTR240802079-01Page 36 of 43 Band-edgeMeasurementsforRFConductedEmissions: GFSK LeftbandedgehopingoffRightbandedgehopingoff GFSK LeftbandedgehopingonRightbandedgehopingon ReportNo.:GRCTR240802079-01Page 37 of 43 π/4DQPSK LeftbandedgehopingoffRightbandedgehopingoff π/4DQPSK LeftbandedgehopingonRightbandedgehopingon ReportNo.:GRCTR240802079-01Page 38 of 43 8DPSK LeftbandedgehopingoffRightbandedgehopingoff 8DPSK LeftbandedgehopingonRightbandedgehopingon ReportNo.:GRCTR240802079-01Page 39 of 43 4.9PseudorandomFrequencyHoppingSequence TESTAPPLICABLE For47CFRPart15Csection15.247(a)(1)requirement: Frequencyhoppingsystemsshallhavehoppingchannelcarrierfrequenciesseparatedbyaminimumof25kHz orthe20dBbandwidthofthehop-pingchannel,whicheverisgreater.Alternatively,frequencyhoppingsystems operatinginthe2400–2483.5MHzbandmayhavehoppingchannelcarrierfrequenciesthatareseparatedby25 kHzortwo-thirdsofthe20dBbandwidthofthehoppingchannel,whicheverisgreater,providedthesystems operatewithanoutputpowernogreaterthan125mW.Thesystemshallhoptochannelfrequenciesthatare selectedatthesystemhoppingratefromapseudorandomlyorderedlistofhoppingfrequencies.Eachfrequency mustbeusedequallyontheaveragebyeachtransmitter.Thesystemreceiversshallhaveinputbandwidthsthat matchthehop-pingchannelbandwidthsoftheircorrespondingtransmittersandshallshiftfrequenciesin synchronizationwiththetransmittedsignals. EUTPseudorandomFrequencyHoppingSequenceRequirement Thepseudorandomfrequencyhoppingsequencemaybegeneratedinanice-stageshiftregisterwhose5 th and 9 th stageoutputsareaddedinamodulo-twoadditionstage.Andtheresultisfedbacktotheinputofthefirst stage.Thesequencebeginswiththefirstoneof9consecutiveones,forexample:theshiftregisterisinitialized withnineones. ●Numberofshiftregisterstages:9 ●Lengthofpseudo-randomsequence:29-1=511bits ●Longestsequenceofzeros:8(non-invertedsignal) Anexampleofpseudorandomfrequencyhoppingsequenceasfollows: Eachfrequencyusedequallyonetheaveragebyeachtransmitter. Thesystemreceiverhaveinputbandwidthsthatmatchthehoppingchannelbandwidthsoftheircorresponding transmitterandshiftfrequenciesinsynchronizationwiththetransmittedsignals. ReportNo.:GRCTR240802079-01Page 40 of 43 4.10AntennaRequirement StandardApplicable Forintentionaldevice,accordingtoFCC47CFRSection15.203,anintentionalradiatorshallbedesignedto ensurethatnoantennaotherthanthatfurnishedbytheresponsiblepartyshallbeusedwiththedevice. AndaccordingtoFCC47CFRSection15.247(c),iftransmittingantennasofdirectionalgaingreaterthan6dBi areused,thepowershallbereducedbytheamountindBthatthedirectionalgainoftheantennaexceeds6dBi. Refertostatementbelowforcompliance Themanufacturermaydesigntheunitsothattheusercanreplaceabrokenantenna,buttheuseofastandard antennajackorelectricalconnectorisprohibited.Further,thisrequirementdoesnotapplytointentionalradiators thatmustbeprofessionallyinstalled. AntennaConnectedConstruction Themaximumgainofantennawas0.62dBi. Remark:Theantennagainisprovidedbythecustomer,ifthedataprovidedbythecustomerisnotaccurate, ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.doesnotassumeanyresponsibility. ReportNo.:GRCTR240802079-01Page 41 of 43 5TestSetupPhotosoftheEUT ReportNo.:GRCTR240802079-01Page 42 of 43 6PhotosoftheEUT ReportNo.:GRCTR240802079-01Page 43 of 43 **********************EndofReport**********************

FCCID:2BKMB-EBGCNV TestSetupPhotosoftheEUT TestSetupPhoto(s)ofRadiatedEmissionsMeasurement Fig.1 Fig.2