2BD7C-JT10ATWS Bluetooth Earphone

JT10Aproductmanual 1.Indicatorlight (1).LEDindicatesstatus •Headphoneson:whitelightflashes •Left/rightearinterconnection:mainearwhiteflashes,secondaryearturns off •ConnectBluetooth:lightoff •Headphonecharging:Thewhitelightoftheheadsetisalwayson/offwhen fullycharged •Warehousecharging:whitelightflasheswhenbreathing/whitelightgoesout whenfullycharged 2.Functionoperation •Turnon:Takeouttheheadphonesfromthecompartmentandturnonthephone •Shutdown:Puttheearphonesbackintothecompartmenttochargeandshut down(shutdownafter3minuteswithoutBluetoothconnection) •Connecttothemobilephone:Aftertheheadsetisturnedon,opentheBluetooth ofthemobilephoneandsearchforthecorrespondingdevicename:GK-JT10A Clicktoconnect •Play/pausemusic:clicktheleft/rightearTouchbutton •Previoussong:musicplayingstatusthreestrikesLeft/rightearTouch button •Nextsong:MusicplayingstatusDoubleclickleft/rightEarTouchbutton •Answeracall:Whenacallcomesin,clicktheTouchbuttononanyearphone toanswerthecall. •Hangup:callinprogressDouble-clicktheTouchbuttononeitherearto hangupthecall •Rejectanincomingcall:Whenacallcomesin,pressandholdtheTouchbutton onanyheadsetforabout2secondstorejectthecall. •TurnonSiri:PressandholdtheTouchbuttononanyheadsetfor2seconds toactivateit Three:promptsound •Poweron:poweron •Shutdown:poweroff •ConnectBluetooth:"Ding"pianosound •DisconnectBluetooth:"dudu" 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. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. FCC ID:2BD7C-JT10A

DongguanGekuAcousticsCo.,Ltd. CoveredEquipmentCertificationAttestationLetter 12/22/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BD7C-JT10A DongguanGekuAcousticsCo.,Ltd.(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. DongguanGekuAcousticsCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Signed: Printedname:JidongYuan Title:manager CompanyName:DongguanGekuAcousticsCo.,Ltd. Date:12/22/2023

DATE2023/12/22 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:_2BD7C-JT10A__ ProductName:TWSBluetoothEarphone___ RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name：JidongYuan Title ：Manager Company：DongguanGekuAcousticsCo.,Ltd.

DATE:2023/12/22 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointBlueAsiaofTechnicalServices(Shenzhen)Co.,LtdAnd BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen, GuangdongProvince,China(NameofAgentcompanynameandaddress)toactasour agentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithDongguanGekuAcousticsCo.,Ltd.AndRoom302, Building2,No.6XifuRoad,Lincun,TangxiaTown,DongguanCity,Guangdong Province,China(ApplicantNameandaddress) <Signature> Name：JidongYuan Title ：Manager Company：DongguanGekuAcousticsCo.,Ltd.

FCC ID: 2BD7C-JT10A Product Name: TWS Bluetooth Earphone Model ：JT10A All models are electrically identical,only model NO. is different. And the device have left and right earphones，left and right earphones are electrically identical. <Signature> Name:Jidong yuan 2023/12/19 Company:Dongguan Geku Acoustics Co., Ltd.

ModelNo.: JT10A

Productname ： TWSBluetoothEarphone FCCID ： 2BD7C-JT10A Model:JT10A 15mm 10mm

ModelNo.: JT10A

RFExposureevaluation FCCID ： 2BD7C-JT10A Accordingto447498D04InterimGeneralRFExposureGuidancev01 Antgain=-2.6dBi MaxOutputpower=1.145Bm@pi/4DQPSK@2480MHz ERP=1.145dBm-2.6dBi-2.15=-3.605dBm So worsecase ： 10^0.1145=1.3017mW<2.72mW ComplywithRFexposureexemptionlimit.

Page 1 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. Add:BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen,GuangdongProvince,China Tel:+86-755-23059481Email:[email protected] TESTREPORT ProductName: TWSBluetoothEarphone BrandMark: N/A ModelNo.: JT10A ExtensionModel: GK-10A,GK-JT10A,TrukeTTQ,Haierbros TTQ,AKOAT-13,SUNRISETW-1,HOCO EQ14 FCCID: 2BD7C-JT10A ReportNumber: BLA-EMC-202312-A1102 DateofSampleReceipt: 2023/12/6 DateofTest: 2023/12/7to2023/12/18 DateofIssue: 2023/12/19 TestStandard: 47CFRPart15,SubpartC15.247 TestResult:Pass Preparedfor: DongguanGekuAcousticsCo.,Ltd. Room302,Building2,No.6XifuRoad,Lincun,TangxiaTown,Dongguan City,GuangdongProvince,China Preparedby: BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict, Shenzhen,GuangdongProvince,China TEL:+86-755-23059481 Compiledby:Reviewby: Approvedby:Date:2023/12/19 ReportNo.:BLA-EMC-202312-A1102 Page 2 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] REPORTREVISERECORD VersionNo.DateDescription 002023/12/19Original ReportNo.:BLA-EMC-202312-A1102 Page 3 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] TABLEOFCONTENTS 1TESTSUMMARY..............................................................................................................................................6 2GENERALINFORMATION...............................................................................................................................7 3GENERALDESCRIPTIONOFE.U.T................................................................................................................7 4OPERATIONFREQUENCYEACHOFCHANNEL..........................................................................................8 5TESTENVIRONMENT....................................................................................................................................10 6TESTMODE....................................................................................................................................................10 7MEASUREMENTUNCERTAINTY..................................................................................................................10 8DESCRIPTIONOFSUPPORTUNIT..............................................................................................................11 9LABORATORYLOCATION.............................................................................................................................11 10TESTINSTRUMENTSLIST..........................................................................................................................12 11DWELLTIME.................................................................................................................................................16 11.1LIMITS......................................................................................................................................................................16 11.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................16 11.3TESTDATA..................................................................................................................................................................17 12HOPPINGCHANNELNUMBER...................................................................................................................18 12.1LIMITS......................................................................................................................................................................18 12.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................18 12.3TESTDATA..................................................................................................................................................................18 13CARRIERFREQUENCIESSEPARATION...................................................................................................19 13.1LIMITS......................................................................................................................................................................19 13.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................19 13.3TESTDATA..................................................................................................................................................................19 1420DBBANDWIDTH.......................................................................................................................................20 14.1BLOCKDIAGRAMOFTESTSETUP............................................................................................................................20 14.2TESTDATA..................................................................................................................................................................20 15CONDUCTEDPEAKOUTPUTPOWER......................................................................................................21 15.1LIMITS......................................................................................................................................................................21 15.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................21 15.3TESTDATA..................................................................................................................................................................22 ReportNo.:BLA-EMC-202312-A1102 Page 4 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:marketing@cblu…

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ReportNo.:BLA-EMC-202312-A1102 Page 65 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] BandEdgeNVNT2-DH12480MHzAnt1No-HoppingRef BandEdgeNVNT2-DH12480MHzAnt1No-HoppingEmission ReportNo.:BLA-EMC-202312-A1102 Page 66 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] ReportNo.:BLA-EMC-202312-A1102 Page 67 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 22.5BANDEDGE(HOPPING) ConditionModeFrequency(MHz)AntennaHoppingModeMaxValue(dBc)Limit(dBc)Verdict NVNT1-DH12402Ant1Hopping-52.79-20Pass NVNT1-DH12480Ant1Hopping-51.28-20Pass NVNT2-DH12402Ant1Hopping-51.46-20Pass NVNT2-DH12480Ant1Hopping-51.82-20Pass BandEdge(Hopping)NVNT1-DH12402MHzAnt1HoppingRef BandEdge(Hopping)NVNT1-DH12402MHzAnt1HoppingEmission ReportNo.:BLA-EMC-202312-A1102 Page 68 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] BandEdge(Hopping)NVNT1-DH12480MHzAnt1HoppingRef BandEdge(Hopping)NVNT1-DH12480MHzAnt1HoppingEmission ReportNo.:BLA-EMC-202312-A1102 Page 69 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] BandEdge(Hopping)NVNT2-DH12402MHzAnt1HoppingRef BandEdge(Hopping)NVNT2-DH12402MHzAnt1HoppingEmission ReportNo.:BLA-EMC-202312-A1102 Page 70 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] BandEdge(Hopping)NVNT2-DH12480MHzAnt1HoppingRef BandEdge(Hopping)NVNT2-DH12480MHzAnt1HoppingEmission ReportNo.:BLA-EMC-202312-A1102 Page 71 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] ReportNo.:BLA-EMC-202312-A1102 Page 72 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 22.6CONDUCTEDRFSPURIOUSEMISSION ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNT1-DH12402Ant1-44.59-20Pass NVNT1-DH12441Ant1-44.4-20Pass NVNT1-DH12480Ant1-43.78-20Pass NVNT2-DH12402Ant1-44.35-20Pass NVNT2-DH12441Ant1-44.55-20Pass NVNT2-DH12480Ant1-44.35-20Pass Tx.SpuriousNVNT1-DH12402MHzAnt1Ref Tx.SpuriousNVNT1-DH12402MHzAnt1Emission ReportNo.:BLA-EMC-202312-A1102 Page 73 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] Tx.SpuriousNVNT1-DH12441MHzAnt1Ref Tx.SpuriousNVNT1-DH12441MHzAnt1Emission ReportNo.:BLA-EMC-202312-A1102 Page 74 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] Tx.SpuriousNVNT1-DH12480MHzAnt1Ref Tx.SpuriousNVNT1-DH12480MHzAnt1Emission ReportNo.:BLA-EMC-202312-A1102 Page 75 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] Tx.SpuriousNVNT2-DH12402MHzAnt1Ref Tx.SpuriousNVNT2-DH12402MHzAnt1Emission ReportNo.:BLA-EMC-202312-A1102 Page 76 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] Tx.SpuriousNVNT2-DH12441MHzAnt1Ref Tx.SpuriousNVNT2-DH12441MHzAnt1Emission ReportNo.:BLA-EMC-202312-A1102 Page 77 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] Tx.SpuriousNVNT2-DH12480MHzAnt1Ref Tx.SpuriousNVNT2-DH12480MHzAnt1Emission ReportNo.:BLA-EMC-202312-A1102 Page 78 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] ReportNo.:BLA-EMC-202312-A1102 Page 79 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 22.7CARRIERFREQUENCIESSEPARATION ConditionModeAntennaHoppingFreq1(MHz)HoppingFreq2(MHz)HFS(MHz)Limit(MHz)Verdict NVNT1-DH1Ant12441.0232442.05651.03350.649Pass NVNT2-DH1Ant12440.8372441.86451.02750.833Pass CFSNVNT1-DH12441MHzAnt1 CFSNVNT2-DH12441MHzAnt1 ReportNo.:BLA-EMC-202312-A1102 Page 80 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] ReportNo.:BLA-EMC-202312-A1102 Page 81 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 22.8NUMBEROFHOPPINGCHANNEL ConditionModeAntennaHoppingNumberLimitVerdict NVNT1-DH1Ant17915Pass NVNT2-DH1Ant17915Pass HoppingNo.NVNT1-DH12441MHzAnt1 HoppingNo.NVNT2-DH12441MHzAnt1 ReportNo.:BLA-EMC-202312-A1102 Page 82 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] ReportNo.:BLA-EMC-202312-A1102 Page 83 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 22.9DWELLTIME ConditionModeFrequency (MHz) AntennaPulseTime (ms) TotalDwellTime (ms) Burst Count PeriodTime (ms) Limit (ms) Verdict NVNT1-DH12441Ant10.383121.02831631600400Pass NVNT1-DH32441Ant11.638265.35616231600400Pass NVNT1-DH52441Ant12.887274.2659531600400Pass NVNT2-DH12441Ant10.392125.04831931600400Pass NVNT2-DH52441Ant12.892338.36411731600400Pass DwellNVNT1-DH12441MHzAnt1OneBurst DwellNVNT1-DH12441MHzAnt1Accumulated ReportNo.:BLA-EMC-202312-A1102 Page 84 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] DwellNVNT1-DH32441MHzAnt1OneBurst DwellNVNT1-DH32441MHzAnt1Accumulated ReportNo.:BLA-EMC-202312-A1102 Page 85 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] DwellNVNT1-DH52441MHzAnt1OneBurst DwellNVNT1-DH52441MHzAnt1Accumulated ReportNo.:BLA-EMC-202312-A1102 Page 86 of 91 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] DwellNVNT2-DH12441MHzAnt1OneBurst DwellNVNT2-DH12441MHzAnt1Accumulated…

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Specification of JT10A FPC Antenna Project JT10A ear support Frequency Band BT(2400-2500) MHz P/N F-2V-7Z-0001-001-K0 Version S01 Date 2023/11/01 SPEED Checked by RF Ruliang Zhang Design by RF Yu Wang ME Kevin Wang ME Rui Wang Remark Customer Date Confirmed by RF ME Remark Manufacturer： Huizhou Speed Communication Technology Co.,Ltd. Add:No. 138, Huize Avenue, Dongjiang Hi-Tech Industrial Park, Zhongkai Hi-Tech Zone, Huizhou, China 1 Introduction The antenna covers the band:BT(2400MHz-2500MHz) Antenna properties were measured in the actual environment plane. Figure 1: FPC Antenna 2 Electrical Performance 2.1 Specification Antenna Passive Performance Antenna Bands 1Operation Frequency (MHz)2400-2500 2Return Loss (dB)-15 3Zenith Gain(dBi) Peak gain :-2.6 4Efficiency (%) 11 5PolarizationVertical polarization 6Impedance50Ω Front Rear 2.2 Test Set-up The return loss and VSWR were measured with Agilent E5071C. The efficiency and gain were measured in ETS-Lindgren Chamber as shown by picture2. Figure 2: ETS chamber and measurement system 2.3 Smith Chart & Return Loss & VSWR Y Z X X Y Y Smith Return Loss VSWR 2.4 Efficiency and Gain Efficiency Peak Gain 2. 5 GainandRadiationPattern Cut1 Power (dBm) Angle (? Scale: 2/div Min: -18 Max: -4 0 180 30 210 60 240 90270 120 300 150 330 2450 MHz Cut2 Power (dBm) Angle (? Scale: 2/div Min: -22 Max: -2 0 180 30 210 60 240 90270 120 300 150 330 2450 MHz Cut3 Power (dBm) Angle (? Scale: 2/div Min: -22 Max: -4 0 180 30 210 60 240 90270 120 300 150 330 2450 MHz 2D pattern 2D pattern Cut1 Power (dBm) Angle (? Scale: 2/div Min: -18 Max: -6 0 180 30 210 60 240 90270 120 300 150 330 2450 MHz Cut2 Power (dBm) Angle (? Scale: 2/div Min: -22 Max: -2 0 180 30 210 60 240 90270 120 300 150 330 2450 MHz Cut3 Power (dBm) Angle (? Scale: 2/div Min: -22 Max: -4 0 180 30 210 60 240 90270 120 300 150 330 2450 MHz 3D radiation pattern 3 MechanicalDrawing(Units:mm) Total Response (dB) -18 -2 -16 -14 -12 -10 -8 -6 -4 X Y Z Azimuth = 0.0 Elevation = 0.0 Roll = 0.0

ModelNo.: JT10A ConductedEmissionsatACPowerLine(150kHz-30MHz) RadiatedSpuriousEmissions