2A8MO-SNC-779Bluetooth Headphones

Page1of3FCCID:2A8MO-SNC-779 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of3FCCID:2A8MO-SNC-779 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of3FCCID:2A8MO-SNC-779 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 ------End------

FCCLabel ProductName:BluetoothHeadphones FCCID:2A8MO-SNC-779

Page1 of 6FCC ID: 2A8MO-SNC-779 DongguanYaxu (AiT) TechnologyLimited No.22,Jinqianling3rd Street,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhoto s Photo1 Photo2 Page2 of 6FCC ID: 2A8MO-SNC-779 DongguanYaxu (AiT) TechnologyLimited No.22,Jinqianling3rd Street,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Antenna Page3 of 6FCC ID: 2A8MO-SNC-779 DongguanYaxu (AiT) TechnologyLimited No.22,Jinqianling3rd Street,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4 of 6FCC ID: 2A8MO-SNC-779 DongguanYaxu (AiT) TechnologyLimited No.22,Jinqianling3rd Street,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 Page5 of 6FCC ID: 2A8MO-SNC-779 DongguanYaxu (AiT) TechnologyLimited No.22,Jinqianling3rd Street,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 Photo10 Page6 of 6FCC ID: 2A8MO-SNC-779 DongguanYaxu (AiT) TechnologyLimited No.22,Jinqianling3rd Street,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo11 Photo12 ------End------

RFExposureevaluation FCCID:2A8MO-SNC-779 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 BR-EDR Frequency (MHz) GFSK 240224412480 Target(dBm)0.02.01.0 Tolerance ± (dB) 1.01.01.0 Frequency (MHz) π/4DQPSK 240224412480 Target(dBm)-1.00.00.0 Tolerance±(dB)1.01.01.0 Frequency (MHz) 8DPSK 240224412480 Target(dBm)-1.00.00.0 Tolerance±(dB)1.01.01.0 Page2of2 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) Max.RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BR-EDR2.5531.580.5<3Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of38ReportNo.:AIT23091512FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:ShenzhenShikeKamWahElectronicCo.,Ltd. Applicantadd.: 1stFloorNO.#36,LangKouIndustrialPark,LangKou Community,Dalang,LonghuaDistrict,ShenZhen,Guangdong,China Manufacturer:ShenzhenShikeKamWahElectronicCo.,Ltd. Manufactureradd.: 1stFloorNO.#36,LangKouIndustrialPark,LangKou Community,Dalang,LonghuaDistrict,ShenZhen,Guangdong,China ProductInformation: ProductName:BluetoothHeadphones ModelNo.:SNC-779,SNC-780,SNC-780L BrandName:JBUNION FCCID:2A8MO-SNC-779 Applicablestandards: FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Sep.15,2023DateofTest:Sep.16~Sep.18,2023 DateofIssue:Sep.19,2023TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: SimbaHuangSeal.chen Page2of38ReportNo.:AIT23091512FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS......................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................4 2.1StatementoftheMeasurementUncertainty................................................................................4 2.2MeasurementUncertainty............................................................................................................4 3TESTFACILITY..............................................................................................................................................................5 3.1Deviationfromstandard...............................................................................................................5 3.2Abnormalitiesfromstandardconditions.......................................................................................5 3.3TestLocation.................................................................................................................................5 4GENERALINFORMATION...........................................................................................................................................6 4.1Testfrequencies............................................................................................................................7 4.2EUTPeripheralList.......................................................................................................................8 4.3TestPeripheralList.......................................................................................................................8 4.4TESTMETHODOLOGY...............................................................................................................9 4.5DescriptionofTestModes..........................................................................................................10 5EQUIPMENTUSEDDURINGTEST.........................................................................................................................11 6TESTRESULTSANDMEASUREMENTDATA.....................................................................................................11 6.1Antennarequirement..................................................................................................................12 6.2PeakPowerMeasurement.........................................................................................................13 6.3FrequencySeparationand20dBBandwidth............................................................................15 6.4NumberofHoppingFrequency..................................................................................................17 6.5TimeofOccupancy(DwellTime)...............................................................................................18 6.6ConductedSpuriousEmissionsandBandEdgesTest.............................................................20 6.7Restrict-bandBand-edgeMeasurements..................................................................................22 6.8RadiatedEmissionsMeasurement............................................................................................24 6.9ConductedEmissions.................................................................................................................34 6.10Pseudorandomfrequencyhoppingsequence...........................................................................37 7TESTSETUPPHOTOGRAPHSOFEUT.................................................................................................................38 8EXTERNALPHOTOGRAPHSOFEUT....................................................................................................................38 9INTERNALPHOTOGRAPHSOFEUT.....................................................................................................................38 Page3of38ReportNo.:AIT23091512FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. RevisionHistory RevisionIssueDateRevisionsRevisedBy 000 Sep.19,2023 InitialIssueSealChen Page4of38ReportNo.:AIT23091512FW1 DongguanYaxu(AiT)TechnologyLimited No.…

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Inverted F Antenna Specification Summary ITEM ANT SPEC 2.4G ANTModel Name Horizontal Vertical 2400MHz2400MHz 2400MHz2500MHz Center Frequency -1.26 -0.76 -0.68 -5.25 -2.46 -1.86 MAX. Gain -0.68dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm 38.20mmAntenna Length Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Frequency Gain(dBi) (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.680582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Frequency Gain(dBi) (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

DongguanYaxu(AiT)TechnologyLimited Rep ort No.: AIT 23091512FW1 FCC ID : 2A8MO-SNC-779 Page 1 of 61 AppendixA RF Test Data for BT(BDR/EDR)(ConductedMeasurement) ProductName:BluetoothHeadphones TradeMark:JBUNION Test Model:SNC-779 EnvironmentalConditions Temperature: 24.7°C RelativeHumidity:53.8% ATM Pressure:101Kpa Test Engineer:SimbaHuang Supervisedby:Seal Chen DongguanYaxu(AiT)TechnologyLimited Rep ort No.: AIT 23091512FW1 FCC ID : 2A8MO-SNC-779 Page 2 of 61 Contents Page COVERPAGE 1Duty Cycle........................................................................................................................................................................................3 1.1Test Result............................................................................................................................................................................3 1.2Test Graphs...........................................................................................................................................................................4 2MaximumConductedPeakOutputPower........................................................................................................................................9 2.1Test Result............................................................................................................................................................................9 2.2Test Graphs.........................................................................................................................................................................10 320dBBandwidth..............................................................................................................................................................................15 3.1Test Result..........................................................................................................................................................................15 3.2Test Graphs.........................................................................................................................................................................16 4CarrierFrequencySeparation.........................................................................................................................................................21 4.1Test Result..........................................................................................................................................................................21 4.2Test Graphs.........................................................................................................................................................................22 5HoppingChannelNumber...............................................................................................................................................................24 5.1Test Result..........................................................................................................................................................................24 5.2Test Graphs.........................................................................................................................................................................25 6DwellTime ......................................................................................................................................................................................27 6.1Test Result..........................................................................................................................................................................27 6.2Test Graphs.........................................................................................................................................................................28 7RF ConductedSpuriousEmissions.................................................................................................................................................31 7.1Test Result..........................................................................................................................................................................31 7.2Test Graphs.........................................................................................................................................................................32 8Band-edgefor RF ConductedEmissions........................................................................................................................................41 8.1Test Result..........................................................................................................................................................................41 8.2Test Graphs.........................................................................................................................................................................42 9Restrict-bandband-edgemeasurements........................................................................................................................................54 9.1Test Result..........................................................................................................................................................................54 9.2Test Graphs.........................................................................................................................................................................56 DongguanYaxu(AiT)TechnologyLimited Rep ort No.: AIT 23091512FW1 FCC ID : 2A8MO-SNC-779 Page 3 of 61 1 Duty Cycle 1.1Test Result ModeFrequency(MHz)Duty Cycle(%)1/T (kHz) 1-DH1240231.22.63 1-DH1244131.22.63 1-DH12480322.56 2-DH12402322.56 2-DH12441322.56 2-DH12480322.56 3-DH12402322.56 3-DH1244132.012.56 3-DH12480322.56 DongguanYaxu(AiT)TechnologyLimited Rep ort No.: AIT 23091512FW1 FCC ID : 2A8MO-SNC-779 Page 4 of 61 1.2Test Graphs Test Graphs 1-DH12402MHz 1-DH12441MHz DongguanYaxu(AiT)TechnologyLimit…

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Page1of2FCCID:2A8MO-SNC-779 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2FCCID:2A8MO-SNC-779 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission ------End------