2BO3Q-KT10SKT10S Bluetooth headset

Charging and discharging 01 Charging bay is charging,not full Red light flashing The red light keeps on. The ice blue lightis on. ice blue light out Left/right ear out, into the war ehouse: ice blue light tobr eathe once The ice blue light is on for 8seconds and off When the headset is full, the ice blue light turns off The charging bay is full Charging or fully charged Put the earphones back in thecharging bay Put the earphones back in the charging bay and charge them fully Out and in war ehouse inspection uncap 400mAh All the time There is no Main ear ice blue light flashes alt- ernately,right e- ar light off(sing- le ear ice blue li- ght flashes alte- rnately) There is no There is no There is no There is no There is no There is no The main ear ligh t flashes in blue and ice alternate- ly, and the right e- ar light turns off. When pairing "dong" When disconne- cting “dongdong” The indicator light is off Bluetooth connected Shut down Bluetooth connected Bluetooth disconnected Ice blue light is always on Ice blue light flashes once ever y 5 seconds Not enough power There is no Ice blue light flashes 3 times Ice blue lights flash alternately There is no 4.2v 3v Wireless charging stream Battery vol tage Battery capacity The Hall lid outputs the 0v duration NTC charging protection temperature range and protection action NTC discharge protection temperature range and protection action Lower than -15 degrees low temperature.stop discharging higher than 55 degreeshigh temperature, stop discharging Below 0 degrees low temper- ature, stopcharging higher than 50 degrees hightemper- ature, stop charging 02 03 04 05 06 07 The standby vol tage of the positive and negative ends of the earphone is applied af ter the earphone is fully charged The main ear light flashes in blue and ice alternately, and the right ear light turns off. 1. The product has any functional problems, can enjoy the warranty service, the warranty period is 1 year. 2. Manual damage, broken, scratched, no warranty card is not covered by the warranty. 3. The customer must fill in all necessary information (customer's name, address, telephone number, date of purchase, etc.). 4. The company is responsible for the maintenance costs incurred during the warranty period, and the company is not responsible for freight and other costs. 5. Warranty service requires a warranty card and operation as requir ed to guarantee, otherwise no warranty. Customer Name:Customer Address: Date of purchase: Contact number Product parameterPairing modeInstructions for useCharging modecommon problem Warranty card P01P02P03P04P05P10P11 Bluetooth headphones withear clips KT10S Instruction manual Matters needing attention 1. How to solve Bluetooth pairing failure? (1)Find the "KT10S" in the Bluetooth connected device of the mobile phone and click ignore, then turn off the Bluetooth of the mobile phone, and finally Put the headset into the charging compartment and when the light is on, turn on the Bluetooth of the phone to re-pair. (2)Open the cover and hold down the headset for 3 seconds, disconnect the mobile phone con- nection. 2. No sound after pairing? First check whether the phone volume is normal, and check whether the phone music is suspended due to misoperation. 3. Why are there occasional delays or delays? Because of the particularity of Bluetooth signals, first check whether there is a high-frequency transmitting device around, such as a router or a microwave oven in operation. Stay away from these devices and try connecting again. In the case of running large games or network delays, the phone takes up a lot of memory At this time, the Bluetooth load of the headset will increase and there may be temporary stayings and delays, and the above situation is not a quality problem of the headset. 4. Why does electric current occasionally sound? Earphones and audio and other electronic sound equipment will objectively exist more or less slight current sound, the main reason is affected by the surrounding magnetic field. Under normal circumstances, the current sound can not be heard when playing music, if you can still hear the current sound when playing music, you can check whether there is any surrounding Magnetic field interference, if any, please stay away and try again. 1. Earphones should be stored in a dry, noisy and ventilated environment to avoid contact with oil and water vapor, so as not to affect product performance. 2. Avoid using irritating, organic solvents or items containing these ingredients for cleaning. 3. In order to ensure the smooth connection of the headset, it is recommended that the indirect distance between the mobile phone and the headset be within 10 meters. 4. To charge the headset, please use the standard car charger or the charger designated by the company to meet the requirements 5. In order to ensure your normal use of headphones, please ensure that the headphones are fully charged. 6. If the headset is not connected and other problems, please do not disassemble the headset body and its accessories, otherwise it will not be guaranteed. 7. Do not use fast-charging or high-power chargers during charging. A 5v2A charger or low power charging is recommended. Left earRight ear Play/pau se Answer and hang up Reject a cal l Previo us song Next song Voic e as sistant Power on Power Off Product name Product model Bluetooth version Input vol tage Battery capacity Standby time Charging time Service time impedance Operating frequency Horn specification Receiving distance Headphone weight Bluetooth headphones withear clips KT10S 5.4 5V 0.5A Charging case：400mAh;Headphones：40mAh 90 days Fully charged in 15 minutes Approximately 8 hours 16Ω±15% 2.440GHZ 10.8MM ≥10m(Accessibility) ≈5.5g 1,Intelligent warehouse, open the coveris connected 2. For the device connected for the first time, open the Bluetooth setting interface of the mobile phone, and the device name KT10S appears in the search device list. 3, click the name of the device to conne…

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CoveredEquipmentCertificationAttestationLetter 2025.09.08 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BO3Q-KT10S ShenzhenKuzelTechnologyCo.,Ltd.(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. ShenzhenKuzelTechnologyCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. ShenzhenKuzelTechnologyCo.,Ltd.(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftware producedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees, includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01 CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:YanhuaWei Title:Manager CompanyName:ShenzhenKuzelTechnologyCo.,Ltd Date:2025.09.08

2025.09.08 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenBangceTestingTechnologyCo.,Ltd.toacton ourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthesigningofall documentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, Name ： YanhuaWei Title:Manager Company:ShenzhenKuzelTechnologyCo.,Ltd

2025.09.08 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BO3Q-KT10S ProductName:KT10SBluetoothheadset RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...) Schematics Blockdiagram  Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. Name:YanhuaWei Title:Manager Company:ShenzhenKuzelTechnologyCo.,Ltd

version01 ShenzhenKuzelTechnologyCo.,Ltd Modeldifferencestatement Itisherebydeclaredthattheproduct FCCID:2BO3Q-KT10S ProductName:KT10SBluetoothheadset Model(s):KT10S,KT01,KT01pro Mark:/ Thedifferencebetweendifferentmodelsisthatinthisapplication,duetodifferentsaleschannelsand differentmodelnames. Sincerely, Signature Name:YanhuaWei Title:Manager ApplicantCompany:ShenzhenKuzelTechnologyCo.,Ltd

ReportNo.:CISRR250701005 Page 56 of 88 7.EXTERNALANDINTERNALPHOTOS 7.1.ExternalPhotos ReportNo.:CISRR250701005 Page 57 of 88

FCCID:2BO3Q-KT10S Label Size:10mm*8mm FCCID:2BO3Q-KT10S LabelLocation

ReportNo.:CISRR250701005 Page 58 of 88 7.2.InternalPhotos ReportNo.:CISRR250701005 Page 59 of 88 ReportNo.:CISRR250701005 Page 60 of 88 ANT

RFExposureevaluation FCCID2BO3Q-KT10S ProductNameKT10SBluetoothheadset ModelNo.KT10S ListedModel(s)KT01，KT01pro 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 Left: ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSKDH5 01.691.48 392.891.95 782.311.70 π/4DQPSK2-DH5 03.412.19 393.802.40 783.232.10 8DPSK3-DH5 03.842.42 393.392.18 782.811.91 Right: ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSKDH5 01.691.48 392.061.61 781.481.41 π/4DQPSK2-DH5 02.601.82 392.951.97 782.411.74 8DPSK3-DH5 03.022.00 393.382.18 782.791.90 4.ManufacturingTolerance Left: BR/EDR DH5 ChannelChannel0Channel39Channel78 Target(dBm)122 Tolerance±(dB)1.01.01.0 2DH5 ChannelChannel0Channel39Channel78 Target(dBm)333 Tolerance±(dB)1.01.01.0 3DH5 ChannelChannel0Channel39Channel78 Target(dBm)332 Tolerance±(dB)1.01.01.0 Left: BR/EDR DH5 ChannelChannel0Channel39Channel78 Target(dBm)121 Tolerance±(dB)1.01.01.0 2DH5 ChannelChannel0Channel39Channel78 Target(dBm)222 Tolerance±(dB)1.01.01.0 3DH5 ChannelChannel0Channel39Channel78 Target(dBm)332 Tolerance±(dB)1.01.01.0 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BR/EDR(LEFT)2.48054 2.51 0.7911<3.0Yes BR/EDR(RIGHT)2.44154 2.51 0.7849<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498D01V06. ------Endofthereport------

ReportNo.:CISRR250701005 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of88 TESTREPORT ReportNo.CISRR250701005 ProjectNo.CISR250701005 FCCID2BO3Q-KT10S ApplicantShenzhenKuzelTechnologyCo.,LTD Address 501,BuildingB,GaoShengBuilding,ShajingStreet,Baoan District,ShenzhenCity,GuangdongProvince,China ManufacturerShenzhenKuzelTechnologyCo.,LTD Address 501,BuildingB,GaoShengBuilding,ShajingStreet,Baoan District,ShenzhenCity,GuangdongProvince,China ProductNameKT10SBluetoothheadset TradeMarkN/A Model/TypereferenceKT10S ListedModel(s) KT01，KT01pro Standard 47CFRPart15.247 TestdateJuly1,2025toJuly5,2025 IssuedateJuly9,2025 TestresultComplied Preparedby:JimmyHuangApprovedby:GenryLong ReportNo.:CISRR250701005 Page 2 of 88 Contents 1.REPORTVERSION..........................................................................................................................................3 2.TESTDESCRIPTION.......................................................................................................................................4 3.SUMMARY........................................................................................................................................................5 3.1.ProductDescription*..................................................................................................................................5 3.2.RadioSpecificationDescription*..............................................................................................................5 3.3.ModificationofEUT.....................................................................................................................................6 3.4.Deviationfromstandards...........................................................................................................................6 3.5.TestingSite...................................................................................................................................................6 4.TESTCONFIGURATION.................................................................................................................................7 4.1.Testfrequencylist.......................................................................................................................................7 4.2.Descriptionsoftestmode...........................................................................................................................7 4.3.Supportunitusedintestconfiguration....................................................................................................7 4.4.Testsampleinformation.............................................................................................................................7 4.5.Environmentalconditions...........................................................................................................................7 4.6.Statementofthemeasurementuncertainty.............................................................................................8 4.7.EquipmentUsedduringtheTest................................................................................................................9 5.TESTRESULTS.............................................................................................................................................11 5.1.EvaluationResults(Evaluation)...............................................................................................................11 5.1.1.AntennaRequirement.............................................................................................................................11 5.2.RadioSpectrumMatterTestResults(RF)...............................................................................................12 5.2.1.ConductedEmissionatACpowerline.................................................................................................12 5.2.2.20dBBandwidth......................................................................................................................................15 5.2.3.MaximumConductedOutputPower.....................................................................................................17 5.2.4.ChannelSeparation................................................................................................................................18 5.2.5.NumberofHoppingFrequencies..........................................................................................................19 5.2.6.DwellTime...............................................................................................................................................20 5.2.7.Conductedbandedgeandspuriousemission...................................................................................22 5.2.8.Radiatedbandedgeemission...............................................................................................................24 5.2.9.RadiatedSpuriousEmission(below1GHz).........................................................................................34 5.2.10.RadiatedSpuriousEmission(Above1GHz)......................................................................................40 6.TESTSETUPPHOTOS..................................................................................................................................54 7.EXTERNALANDINTERNALPHOTOS........................................................................................................56 7.1.ExternalPhotos.........................................................................................................................................56 7.2.InternalPhotos...........................................................................................................................................58 8.APPENDIXREPORT..................................................................................................…

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ANTENNA DATA SHEET FPC antenna ATN56026 2.4G-2.48GHz 2025.9.1 Address: 504-505,Summer Valley, MeishengChuanggu Science and Technology Innovation Park, Longchang Road, Xin'anStreet, Baoan District, Shenzhen, China Manufacturer：SHENZHEN ATN COMMUNICATION TECHNOLOGY CO.,LTD. DATE： Model： SPECIFICATIONS： Peak Gain： -1.61dBi AgilentTechnologiesE5071 SHENZHEN ATN COMMUNICATION TECHNOLOGY CO.,LTD. 1、Test Equipment&Conditions 1.1Network Analyzers B 1.2Communications Test Set CMW500 1.3Test System 2、 2.1 、 Material&MechanicalCharacteristic SHENZHEN ATN COMMUNICATION TECHNOLOGY CO.,LTD. s Material Antenna type FPC PIFA a n t e n n a 2.2、Storage conditions Storage Temperature relative humidity Storage life 22°C±5°C 35-65% 360 days 3 、 Matching circuit L/R 4. 4、Test Data Report 1S11Parameter L/R Product Specification SHENZHEN ATN COMMUNICATION TECHNOLOGY CO.,LTD. 4.2 Gain & Efficiency 4.3 Radiation pattern L / R L/R SHENZHEN ATN COMMUNICATION TECHNOLOGY CO.,LTD. Product Drawing5、

ReportNo.:CISRR250701005 Page 54 of 88 6.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR250701005 Page 55 of 88 RadiatedSpuriousEmission(below1GHz)