2ALET-KW1801myFirst Watch F1

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2ALET-KW1801KW1801 Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementfornolessthanoneyear afterthegranteehasterminatedallmarketingandimportationortheconclusionof anyCommission-relatedproceedinginvolvingtheequipment. iv.Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,the granteeisobligatedtonotifytheFCCwithin30daysviathegrantingTCB. US-AmericanPointofContactApplicant/ApprovalHolder SignatureDate:2026-8-10SignatureDate:2026-8-10 CompanyName:GLOCERTSTECHNOLOGYINCmyFirstTechAsiaPte.Ltd. FRN:00363397370026335786 ContactName:HuiyingFanYingKeongChaw Address:19784SUNKISSEDRIDGEDR, RIVERSIDE,CA92507UnitedStates 8AdmiraltyStreet,#06-03 Admirax,Singapore757438 Phone:(626)588-803992221475 Email:[email protected]@myfirst.tech

Page1of4FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of4FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of4FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of4FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 ------End------

Label FCCID:2ALET-KW1801

Page1of6FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhotos Photo1 Photo2 Page2of6FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of6FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of6FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 BTAntenna Page5of6FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 Photo10 Page6of6FCCID: 2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo11 ------End------

Page1of8ReportNo.:AiTDG-260702005W2 Note:Thisdevicehasbeentestedandfoundtocomplywiththestandard(s)listed,thistestreportmerelycorrespondstothe testsample.Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory.This reportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguanYaxu(AiT)TechnologyLimited.Ifthere isaneedtoalterorrevisethisdocument,therightbelongstoDongguanYaxu(AiT)TechnologyLimited,anditshouldgivea priorwrittennoticeoftherevisiondocument.Thistestreportmustnotbeusedbytheclienttoclaimproductendorsement. DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan,Guangdong,China. RFExposureevaluation ProductName: myFirstWatchF1 BrandName: myFirst Model: KW1801 SeriesModel: N/A FCCID: 2ALET-KW1801 Applicant: myFirstTechAsiaPte.Ltd. Address: 8AdmiraltyStreet,#06-03Admirax,Singapore757438 Manufacturer: myFirstTechAsiaPte.Ltd. Address: 8AdmiraltyStreet,#06-03Admirax,Singapore757438 Standard(s): 47CFR§1.1310,47CFR§2.1093 KDB447498D01GeneralRFExposureGuidancev06 DateofReceipt: Jul.02,2026 DateofTest: Jul.02,2026~Jul.09,2026 IssuedDate: Jul.10,2026 IssuedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan,Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 Reviewedby:Approvedby: EmiyaLinSimbaHuang Page 2 of 8 ReportNo.:AiTDG-260702005W2 ReportReviseRecord ReportVersionIssuedDateNotes V1.0Jul.10,2026InitialRelease Page 3 of 8 ReportNo.:AiTDG-260702005W2 Contents 1GENERALINFORMATION.............................................................................................................................................4 1.1ENVIRONMENTALCONDITIONS........................................................................................................................................4 1.2GENERALDESCRIPTIONOFEUT......................................................................................................................................4 1.3TESTFACILITY...............................................................................................................................................................5 1.4MEASUREMENTUNCERTAINTY........................................................................................................................................6 2METHODOFMEASUREMENT......................................................................................................................................7 2.1APPLICABLESTANDARD.................................................................................................................................................7 2.2EVALUATIONMETHODANDLIMIT...................................................................................................................................7 2.3MANUFACTURINGTOLERANCE........................................................................................................................................8 2.4EVALUATIONRESULT......................................................................................................................................................8 2.5CONCLUSION................................................................................................................................................................8 Page 4 of 8 ReportNo.:AiTDG-260702005W2 1GENERALINFORMATION 1.1Environmentalconditions Duringthemeasurementtheenvironmentalconditionswerewithinthelistedranges: NormalTemperature:25°C RelativeHumidity:55% AirPressure:101kPa 1.2GeneralDescriptionofEUT ProductName:myFirstWatchF1 Model/Type reference: KW1801 SerialModel:N/A PowerSupply:DC3.8VfrombatteryorDC5.0Vfromexternalcircuit Hardwareversion.:N/A Softwareversion.:N/A Testsample(s)ID:AiTDG-260702005-1 BT: Modulation:GFSK Operationfrequency:2402MHz-2480MHz Channelnumber:40Channels Channelseparation:2MHz Antennatype:WireAntenna Antennagain:-2.7dBi Remark:TheaboveDUT'sinformationwasdeclaredbymanufacturer.Formoredetailedfeatures description,pleaserefertothemanufacturer’sspecificationsortheUser'sManual. Page 5 of 8 ReportNo.:AiTDG-260702005W2 1.3TestFacility TestLaboratory: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan,Guangdong,China Thetestfacilityisrecognized,certifiedoraccreditedbythefollowingorganizations: CNAS-RegistrationNo:L6177 DongguanYaxu(AiT)technologyLimitedisaccreditedtoISO/IEC17025:2017generalRequirements forthecompetenceoftestingandcalibrationlaboratories(CNAS-CL01AccreditationCriteriaforthe competenceoftestingandcalibrationlaboratories)onApril18,2022 FCC-RegistrationNo.:362653DesignationNumber:CN1457 DongguanYaxu(AiT)TechnologyLimitedhasbeenregisteredandfullydescribedinareportfiledwith the(FCC)FederalCommunicationsCommission.TheacceptanceletterfromtheFCCismaintainedin ourfiles. IC-RegistrationNo.:6819ACABidentifier:CN0122 The3mSemi-anechoicchamberofDongguanYaxu(AiT)TechnologyLimitedhasbeenregisteredby CertificationandEngineeringBureauofIndustryCanadaforradioequipmenttestingwithRegistration No.:6819A A2LA-LabCert.No.:6317.01 DongguanYaxu(AiT)TechnologyLimitedhasbeenaccreditedbyA2LAfortechnicalcompetencein thefieldofelectricaltesting,andprovedtobeincompliancewithISO/IEC17025:2017General RequirementsfortheCompetenceofTestingandCalibrationLaboratoriesandanyadditionalprogram requirementsintheidentifiedfieldoftesting. Page 6 of 8 ReportNo.:AiTDG-260702005W2 1.4Measurementuncertainty Thedataandresultsreferencedinthisdocumentaretrueandaccurate.Thereaderiscautionedthat theremaybeerrorswithinthecalibrationlimitsoftheequipmentandfacilities.Themeasurement uncertaintywascalculatedforallmeasurementslistedinthistestreportaccordingtoCISPR16- 4“Specificationforradiodisturbanceandimmunitymeasuringapparatusandmethods–Part4: UncertaintyinEMCMeasurements”andisdocumentedintheDongguanYaxu(AiT)Technology Limited’squalitysystemaccordingtoDINENISO/IEC17025.Furthermore,componentandprocess variabilityofdevicessimilartothattestedmayresult…

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Page1of35ReportNo.:AiTDG-260702005W1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:myFirstTechAsiaPte.Ltd. Applicantadd.:8AdmiraltyStreet,#06-03Admirax,Singapore757438 Manufacturer:myFirstTechAsiaPte.Ltd. Manufactureradd.:8AdmiraltyStreet,#06-03Admirax,Singapore757438 ProductInformation: ProductName:myFirstWatchF1 ModelNo:KW1801 BrandName:myFirst FCCID:2ALET-KW1801 Applicablestandards : FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Jul.02,2026DateofTest:Jul.02,2026~Jul.09,2026 DateofIssue:Jul.10,2026TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: EmiyaLinSimbaHuang Page2of35ReportNo.:AiTDG-260702005W1 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...........................................................................................................................7 4.3TestPeripheralList............................................................................................................................7 4.4TESTMETHODOLOGY....................................................................................................................8 4.4.1EUTConfiguration.......................................................................................................................8 4.4.2EUTExercise...............................................................................................................................8 4.4.3GeneralTestProcedures.............................................................................................................8 4.5DescriptionofTestModes.................................................................................................................9 5EQUIPMENTUSEDDURINGTEST...............................................................................................................................10 6TESTRESULTSANDMEASUREMENTDATA..........................................................................................................10 6.1Antennarequirement.......................................................................................................................12 6.2OnTimeandDutyCycle.................................................................................................................13 6.3MaximumConductedOutputPowerMeasurement.......................................................................14 6.46dBSpectrumBandwidthMeasurement.......................................................................................15 6.5PowerSpectralDensity...................................................................................................................16 6.6ConductedSpuriousEmissionsandBandEdgesTest..................................................................17 6.7Restrict-bandBand-edgeMeasurements.......................................................................................18 6.8RadiatedEmissionsMeasurement.................................................................................................21 6.9ConductedEmissions.....................................................................................................................32 7TESTSETUPPHOTOGRAPHSOFEUT......................................................................................................................35 8EXTERNALPHOTOGRAPHSOFEUT.........................................................................................................................35 9INTERNALPHOTOGRAPHSOFEUT..........................................................................................................................35 Page3of35ReportNo.:AiTD…

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ShenzhenChangtaiFuyuanElectronicsCo., LTD 3rd Floor,BuildingG, No. 2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen AntennaSpecification 1 PRODUCTINFORMATION 1.1 ManufacturerInformation ManufacturerShenzhenChangtaiFuyuanElectronicsCo., LTD Address 3rd Floor,BuildingG, No. 2070,JinchengRoad,Haoxiang Community,ShajingStreet,BaoanDistrict,Shenzhen 1.2 GeneralDescriptionfor EquipmentunderTest (EUT) ModelNameUnder Test 2.4GBT-ANT AntennaType WireAntenna Dimensions90mm*10mm MAX.Gain-2.70 dBi AntennaType Wire 1.3 TechnicalInformation Frequencies2400~2500MH z Test Frequencies 2400MHz, 2410MHz, 2420MHz, 2430MHz, 2440MHz, 2450MHz 2460MHz, 2470MHz, 2480MHz, 2490MHz, 2500MHz 1.4 Antennashape Testedby:Luo YouningCheckedby: Li ChenjiaApprovedby:SallyYu ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen VSWR Frequency VSWR 2400MHz1.57 2450MHz1.76 2500MHz1.93 ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen 3DPattern B1.13DPatternfor2400MHz B1.23DPatternfor2450MHz ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict, Shenzhen B1.33DPatternfor2500MHz ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen 1DRadiationPattern PHI=0 PHI=90 ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict, Shenzhen THETA=90 Frequency(MHz)Gain(dBi)Efficiency(%) 2400-2.7018 2410-2.9217 2420-3.0717 2430-3.0916 2440-3.4815 2450-3.7315 2460-3.7714 2470-3.8114 2480-3.6914 2490-3.9314 2500-4.1814

DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 1 of 24 AppendixB RFTestDataforBT(BLE)(ConductedMeasurement) ProductName:myFirstWatchF1 TradeMark:myFirst TestModel:KW1801 EnvironmentalConditions Temperature: 24.5  C RelativeHumidity:52.5% ATMPressure:100.0kPa TestEngineer:Emiyalin Supervisedby:SimbaHaung DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 2 of 24 Contents Page COVERPAGE 1DutyCycle........................................................................................................................................................................................3 1.1TestResult............................................................................................................................................................................3 1.2TestGraphs...........................................................................................................................................................................4 2MaximumConductedOutputPower.................................................................................................................................................6 2.1TestResult............................................................................................................................................................................6 2.2TestGraphs...........................................................................................................................................................................7 3-6dBBandwidth.................................................................................................................................................................................9 3.1TestResult............................................................................................................................................................................9 3.2TestGraphs.........................................................................................................................................................................10 4MaximumPowerSpectralDensityLevel.........................................................................................................................................12 4.1TestResult..........................................................................................................................................................................12 4.2TestGraphs.........................................................................................................................................................................13 5BandEdge......................................................................................................................................................................................15 5.1TestResult..........................................................................................................................................................................15 5.2TestGraphs.........................................................................................................................................................................16 6ConductedRFSpuriousEmission..................................................................................................................................................18 6.1TestResult..........................................................................................................................................................................18 6.2TestGraphs.........................................................................................................................................................................19 7RestrictBand..................................................................................................................................................................................22 7.1TestResult..........................................................................................................................................................................22 7.2TestGraphs.........................................................................................................................................................................23 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 3 of 24 1DutyCycle 1.1 TestResult ModeFrequency(MHz)DutyCycle(%)Correction Factor 1/T(kHz) BLE1M240267.191.732.44 BLE1M244067.191.732.44 BLE1M248067.191.732.44 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 4 of 24 1.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 5 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 6 of 24 2MaximumConductedOutputPower 2.1 TestResult ModeFrequency(MHz)ConductedPower (dBm) Limit(dBm)Verdict BLE1M2402-0.6330Pass BLE1M2440-1.8630Pass BLE1M2480-1.9430Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 7 of 24 2.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 8 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 9 of 24 3-6dBBandwidth 3.1 TestResult ModeFrequency(MHz)-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict BLE1M24020.6570.5Pass BLE1M24400.6650.5Pass BLE1M24800.6680.5Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 10 of 24 3.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 11 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AiTDG-260702005W1 FCCID:2ALET-KW1801 Page 12 of 24 4Max…

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Page1of2 FCCID:2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2 FCCID:2ALET-KW1801 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission RFConduction ------End------