2A9CD-S300Wireless Headset

74mm

ShenzhenSenyangZhiyuanTechnologyCo.,Ltd CoveredEquipmentCertificationAttestationLetter 9/30/2024 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa K1V1H2 Canada ATTN.:ReviewingEngineer FCCID:2A9CD-S300 ShenzhenSenyangZhiyuanTechnologyCo.,Ltd(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. ShenzhenSenyangZhiyuanTechnologyCo.,Ltd(“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListas anentityproducing“covered”equipment. Signed: Printedname::Dandanhu Title:Manager CompanyName:ShenzhenSenyangZhiyuanTechnologyCo.,Ltd Date:9/30/2024

ShenzhenSenyangZhiyuanTechnologyCo.,Ltd * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. 1 U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter October9,2024 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa K1V1H2 Canada ATTN.:ReviewingEngineer FCCID:2A9CD-S300 Persection2.911(d)(7)oftheFCCrules,ShenzhenSenyangZhiyuanTechnologyCo.,Ltd(“the applicant”)certifiesthattheequipmentforwhichauthorizationissoughtisdesignatedtothe followingU.S.Designatedagent*forserviceofprocess: CompanyName:SELLERHELPERINC. PhysicalU.S.CompanyAddress:131217thStreet1298DenverCO80202UnitedStates denver,CO80202UnitedStates Agentname:FairyLee AgentEmailAddress:[email protected] FRN:0033406737 Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:DesignatedAgentSigned: (Required,ifdifferenttoApplicant): Signed: Signed: Printedname:DandanhuPrintedname:FairyLee Title:ManagerTitle:Manager Company Name: ShenzhenSenyangZhiyuan TechnologyCo.,Ltd Company Name: SELLERHELPERINC. Date:October09,2024Date:October09,2024 FRNCode:0033079344FRNCode:0033406737

ShenzhenSenyangZhiyuanTechnologyCo.,Ltd 9/30/2024 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa,Ontario,Canada K1V1H2 AUTHORITYTOACTASAGENT-FCC Onourbehalf,IappointShenzhenSenyangZhiyuanTechnologyCo.,Ltd,toactasouragentinthe preparationofthisapplicationforequipmentcertification.Icertifythatsubmitteddocumentsproperly describethedeviceorsystemforwhichequipmentcertificationissought.Ialsocertifythateachunit manufactured,importedormarketed,asdefinedinFCCregulationswillhaveaffixedtoitalabel identicaltothatsubmittedforapprovalwiththisapplication. Insigningthisletter,Applicantcertifiesthatneithertheapplicantnoranypartytotheapplicationis notsubjecttoadenialofFederalbenefits,thatincludeFCCbenefits,pursuanttoSection5301ofthe Anti-DrugAbuseActof1988,21U.S.C.§862becauseofaconvictionforpossessionordistribution ofacontrolledsubstance.See47CFR1.2002(b)forthedefinitionofa"party"forthesepurposes. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf,I acknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsforcertification,as specifiedbyNemkoNorthAmericaInc.,stillresidesstillresideswithus. Sincerely, Printedname:Dandanhu

ShenzhenSenyangZhiyuanTechnologyCo.,Ltd 10/11/2024 NemkoCanadaInc 303RiverRoad Ottawa K1V1H2 Canada CompanyName:ShenzhenSenyangZhiyuanTechnologyCo.,Ltd FCCID:2A9CD-S300 Models:S300,TWS,PRO,S220,S6,V77,V99,E70,NE-108,NE-104,NE-01,NE-02, NE-03,NE-04,NE-05,NE-06,NE-07,NE-105,NE-106,NE-107,A1,A2,A3,A4,A5,A6, A7,A8,A9,A10,Q10,Q11,Q12,J08A,J08B,J08C WeherebyrequestFamilyCertificationfortheabovementionedModelsbasedonthembeing electricallyidentical. We(ShenzhenSenyangZhiyuanTechnologyCo.,Ltd)herebystatethatallthemodelsare electricalidenticalincludingthesamesoftwareparameterandhardwaredesign(i.e.,circuit design,PCBLayout,RFmodule/circuit,antennatype(s)andantennalocation,componentson PCB,etc.,),samemechanicalstructureanddesign(includingproductenclosure,materials, etc.,),S300istestedmodel,onlydifferentonthemodelnames.SothetestdataofS300can representtheremainingmodels. Signed: Printedname:Dandanhu Title:Manager Date:10/11/2024

ShenzhenSenyangZhiyuanTechnologyCo.,Ltd September30,2024 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa,Ontario,Canada K1V1H2 REQUESTFORCONFIDENTIALITY-FCC FCCID:2A9CD-S300 PursuanttoSections0.457(d)and0.459oftheCommission’sRulesandFCCGuidancedocument 726920,weherebyrequestpermanentconfidentialtreatmentofexhibitsidentifiedassuchinthe tablebelowandrequesttheyarepermanentlywithheldfrompublicreviewbasedonthedocuments containingtradesecretsandproprietaryinformationnotcustomarilyreleasedtothepublic.The publicdisclosureofthisinformationmightbeharmfultotheapplicantandprovideunjustifiedbenefits toitscompetitors. ExhibitTypeofConfidentialityRequested BlockDiagrams☒Permanent☐ShortTerm ExternalPhotos------------------ ☐ShortTerm InternalPhotos ☐ Permanent* ☐ ShortTerm OperationDescription☒Permanent☐ShortTerm PartsList&Placement/BOM ☐Permanent☐ShortTerm Tune-UpProcedure ☐Permanent☐ShortTerm SchematicDiagrams☒Permanent☐ShortTerm TestSetupPhotos------------------ ☐ ShortTerm User’sManual ☐ Permanent* ☐ ShortTerm Theasteriskeditems(*)requirefurtherinformationtobeprovidedinthisjustificationletterbeforepermanentconfidentiality willbeextendedtotheseexhibits.PleaserefertoFCCKDB726920D01foundat: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731andreviewsectionII,3)regarding specificinformationthatmustaccompanytheserequests. Note:anydocumentsheldundertheShort-Termconfidentialitywillautomaticallybecomepublic aftertherequestedtimeifanappropriateextensionrequesthasnotbeenreceived.Anyexhibits (i.e.,schematicdiagrams)thatmayhavealreadybeenrequestedtohave“Permanent” confidentialityasshownaboveneednotberepeatedunderShort-Termconfidentialityrequest. Sincerely, Signed: Printedname:Dandanhu Clickheretoentertext.Clickheretoentertext. Title:Manager CompanyName:ShenzhenSenyangZhiyuanTechnologyCo.,Ltd

ShenzhenSenyangZhiyuanTechnologyCo.,Ltd Thedifferencebetweentheleftheadsetandtherightheadset Productdescription:WirelessHeadset Modelname:S300,TWS,PRO,S220,S6,V77,V99,E70,NE-108,NE-104,NE-01, NE-02,NE-03,NE-04,NE-05,NE-06,NE-07,NE-105,NE-106,NE-107,A1,A2,A3, A4,A5,A6,A7,A8,A9,A10,Q10,Q11,Q12,J08A,J08B,J08C FCCID:2A9CD-S300 We(ShenzhenSenyangZhiyuanTechnologyCo.,Ltd)herebystatethatleftandright earphonesareelectricalidenticalincludingthesamesoftwareparameterand hardwaredesign(i.e.,circuitdesign,PCBLayout,RFmodule/circuit,antennatype(s) andantennalocation,componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),Thisproductcanshareasingle FCCID. Client’ssignature: Client’sname/title:Dandanhu/Manager Contactinformation/address:505,Floor5,WestBlock,Building405,Sanda IndustrialZone,FutianDistrict,Shenzhen,518000,China

FCCID:2A9CD-S300 EUTPHOTOS(ExternalPhotos) FCCID:2A9CD-S300 FCCID:2A9CD-S300 FCCID:2A9CD-S300 ※※※※※ENDOFREPORT※※※※※

Size:3mm*16mm Right Left FCCID:2A9CD-S300 FCCID:2A9CD-S300

FCCID:2A9CD-S300 EUTPHOTOS(InternalPhotos) FCCID:2A9CD-S300 FCCID:2A9CD-S300 ANT Antenn FCCID:2A9CD-S300 ※※※※※ENDOFREPORT※※※※※

FCCID:2A9CD-S300 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093 ， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBluetooth Mode Max Power (dBm) Tune-up power (dBm) Max Power (mW) Frequency(MHz) Min. Distance (mm) Calc. thresholds limit BR/EDR3.523 ± 12.51244150.7843.0 SoaSARtestisnotrequired

AntennaSpecification Name：PCBAntenna Partnumber：6535 Frequency：2402MHz~2480MHz V.S.W.R：2.0 Gain（dBi）：0dBi Impedance：50Ω Manufacturer： ShenzhenSenyangZhiyuanTechnologyCo.,Ltd 505,Floor5,WestBlock,Building405,SandaIndustrialZone, FutianDistrict,Shenzhen,518000,China size ： 8.08mm 2.65mm 1.75mm AntennaSpecification AntennaPerformanceTest

ProjectNo.:ZKT-240926L12353E Page 1 of 97 FCCTESTREPORT FCCID:2A9CD-S300 ReportNumber...................................:ZKT-240926L12353E DateofTest ........................................... :Sept.10,2024–Sept.19,2024 Dateofissue.........................................: Oct.14,2024 TestResult..........................................:PASS TestingLaboratory............................:ShenzhenZKTTechnologyCo.,Ltd. Address...............................................:1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ............................. : ShenzhenSenyangZhiyuanTechnologyCo.,Ltd Address...............................................:505,Floor5,WestBlock,Building405,SandaIndustrialZone, FutianDistrict,Shenzhen,518000,China Manufacturer'sname ...................... : ShenzhenSenyangZhiyuanTechnologyCo.,Ltd Address...............................................:505,Floor5,WestBlock,Building405,SandaIndustrialZone, FutianDistrict,Shenzhen,518000,China Testspecification: Standard................................................:FCCCFRTitle47Part15SubpartCSection15.247 Testprocedure.....................................:KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2013 Non-standardtestmethod ................ :N/A TestReportFormNo. .......................... :TRF-EL-112_V0 TestReportForm(s)Originator..........:ZKTTesting MasterTRF ......................................... :Dated:2021-04-22 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.....................................:WirelessHeadset Trademark ........................................... :/ Model/Typereference.........................:S300 TWS,PRO,S220,S6,V77,V99,E70,NE-108,NE-104,NE-01, NE-02,NE-03,NE-04,NE-05,NE-06,NE-07,NE-105,NE-106, NE-107,A1,A2,A3,A4,A5,A6,A7,A8,A9,A10,Q10,Q11,Q12, J08A,J08B,J08C Modeldifference...................................:S300isthetestmodel,whileothermodelsarederivativemodels. Thesemodelsarethesameonthecircuit,withonlydifferentmodel names.Therefore,thetestdataofS300canrepresenttheremaining models. Ratings..................................................:Input:DC5VorDC3.7Vpowerbybattery ProjectNo.:ZKT-240926L12353E Page 2 of 97 Testingprocedureandtestinglocation: TestingLaboratory .......................................... :ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : TomZou Reviewer(name+signature) ....................... : LakeXie Approved(name+signature) ....................... : ProjectNo.:ZKT-240926L12353E Page 3 of 97 TableofContents Page 1.VERSION...........................................................................................................................................5 2.TESTSUMMARY..............................................................................................................................6 2.1TESTFACILITY...............................................................................................................................7 2.2MEASUREMENTUNCERTAINTY...................................................................................................7 3.GENERALINFORMATION...............................................................................................................8 3.1GENERALDESCRIPTIONOFEUT................................................................................................8 3.2TestSetupConfiguration.................................................................................................................9 3.3SupportEquipment........................................................................................................................10 3.4TestMode......................................................................................................................................10 3.5EQUIPMENTSLISTFORALLTESTITEMS................................................................................11 4.EMCEMISSIONTEST....................................................................................................................13 4.1Conductedemissions.....................................................................................................................13 4.1.1POWERLINECONDUCTEDEMISSIONLimits........................................................................13 4.1.2TESTPROCEDURE...................................................................................................................13 4.1.3DEVIATIONFROMTESTSTANDARD......................................................................................13 4.1.4TESTSETUP..............................................................................................................................14 4.1.5EUTOPERATINGCONDITIONS...............................................................................................14 4.1.6TestResult..................................................................................................................................14 4.2Radiatedemissions........................................................................................................................15 4.2.1RadiatedEmissionLimits...........................................................................................................15 4.2.2TESTPROCEDURE...................................................................................................................15 4.2.3DEVIATIONFROMTESTSTANDARD..........................................…

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FCCID:2A9CD-S300 EUTTESTPHOTOS