2AHFT8202Smart Watch

7.86dBm

Setupphotos 1Photographs-EUTTestSetup 1.1RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: Above1GHz: 1.2ConductedEmissionsTestSetup 1.3RFConductedmeasurement

Report No.: TSEA26050046301 Appendix D 1. Test Sample Photo 1: Front View Photo 2: Back View Photo 3: Antenna Locations Report No.: TSEA26050046301 2. Test positions Photo 4: Front side 10mm Photo 5: Back side 0mm

SHENZHEN YUSHENG COMMUNICATION EQUIPMENT CO., LTD Add: 407-411, Floor 4, Building 2, Yuntai Chuanggu Park, southeast of the intersection of Guangming Avenue and Dongchang Road, Guangming District, Shenzhen ANTENNA REPORT TGW02 BT--FPC 2026-05-25 BT SWR BT efficiecy BT Gain= -4.28dBi Free-space TestFree-spac Test Point ID 123456789 Freq. (MHz)240024102420243024402450246024702480 Efficiency (%) 15.1716.8416.6816.7216.5416.9515.8314.9614.53 Efficiency(dB) -8.19-7.8-7.77-7.76-7.73-7.7-8-8.25-8.37 Gain(dBi) -4.84-4.28-4.39-4.49-4.7-4.78-4.86-5.09-5.19 BT Antenna size mm BT Thank you！

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:70of82 TestSetup: Figure1.Below30MHz Figure2.30MHzto1GHzFigure3.Above1GHz TestProcedure: a.1)Below1G:TheEUTwasplacedonthetopofarotatingtable0.8meters abovethegroundata3metersemi-anechoiccamber.Thetablewas rotated360degreestodeterminethepositionofthehighestradiation. 2)Above1G:TheEUTwasplacedonthetopofarotatingtable1.5meters abovethegroundata3metersemi-anechoiccamber.Thetablewas rotated360degreestodeterminethepositionofthehighestradiation. Note:Fortheradiatedemissiontestabove1GHz: PlacethemeasurementantennaawayfromeachareaoftheEUT determinedtobeasourceofemissionsatthespecifiedmeasurement distance,whilekeepingthemeasurementantennaaimedatthesourceof emissionsateachfrequencyofsignificantemissions,withpolarization orientedformaximumresponse.Themeasurementantennamayhaveto behigherorlowerthantheEUT,dependingontheradiationpatternofthe emissionandstayingaimedattheemissionsourceforreceivingthe maximumsignal.Thefinalmeasurementantennaelevationshallbethat whichmaximizestheemissions.Themeasurementantennaelevationfor maximumemissionsshallberestrictedtoarangeofheightsoffrom1mto 4mabovethegroundorreferencegroundplane. b.TheEUTwasset3metersawayfromtheinterference-receivingantenna, whichwasmountedonthetopofavariable-heightantennatower. c.Theantennaheightisvariedfromonemetertofourmetersabovethe groundtodeterminethemaximumvalueofthefieldstrength.Both horizontalandverticalpolarizationsoftheantennaaresettomakethe measurement. 1 5 0 c m SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:71of82 d.Foreachsuspectedemission,theEUTwasarrangedtoitsworstcase andthentheantennawastunedtoheightsfrom1meterto4meters(for thetestfrequencyofbelow30MHz,theantennawastunedtoheights1 meter)andtherotatabletablewasturnedfrom0degreesto360 degreestofindthemaximumreading. e.Thetest-receiversystemwassettoPeakDetectFunctionandSpecified BandwidthwithMaximumHoldMode. f.IftheemissionleveloftheEUTinpeakmodewas10dBlowerthanthe limitspecified,thentestingcouldbestoppedandthepeakvaluesofthe EUTwouldbereported.Otherwisetheemissionsthatdidnothave10dB marginwouldbere-testedonebyoneusingpeak,quasi-peakor averagemethodasspecifiedandthenreportedinadatasheet. g.TesttheEUTinthelowestchannel(2402MHz),themiddlechannel (2441MHz),theHighestchannel(2480MHz) h.TheradiationmeasurementsareperformedinX,Y,Zaxispositioning forTransmittingmode,andfoundtheXaxispositioningwhichitisthe worstcase. i.Repeataboveproceduresuntilallfrequenciesmeasuredwascomplete. ExploratoryTestMode: Non-hoppingtransmittingmodewithallkindofmodulationandallkindof datatype Transmittingmode FinalTestMode: ThroughPre-scan,findtheDH5ofdatatypeandGFSKmodulationisthe worstcase. Forbelow1GHzpart,throughpre-scan,theworstcaseisthehighest channel. Onlytheworstcaseisrecordedinthereport. TestResults:Pass SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:72of82 5.11.1RadiatedEmissionbelow1GHz SHENZHENSUNHEENERGYCO.,LTD 30MHz~1GHz Testmode:TransmittingVertical Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:73of82 Testmode:TransmittingHorizontal Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:74of82 ZHONGSHANZHONGWANGDENEWENERGYTECHNOLOGYCO.,LTD. 30MHz~1GHz Testmode:TransmittingVertical Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:75of82 Testmode:TransmittingHorizontal Remark: ThefieldstrengthiscalculatedbyaddingtheAntennaFactor,CableFactor&Preamplifier.Thebasic equationwithasamplecalculationisasfollows: Factor=AntennaFactor+CableFactor–PreamplifierFactor, Level=ReadLevel+Factor, OverLimit=Level-LimitLine. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:76of82 5.11.2TransmitterEmissionabove1GHz Worsecasemode:GFSK(DH5)Testchannel:Lowest Frequency Meter ReadingFactor Emission LevelLimitsOver Detect or Type Ant. Pol. Antenna Height Table Angle (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V (m)(Degree) 239055.73-9.246.5374-27.47PeakH1.5314 240057.01-9.3947.6274-26.38PeakH1.5350 480453.65-4.3349.3274-24.68PeakH1.5357 720649.901.0150.9174-23.09PeakH1.5326 239052.58-9.243.3874-30.62PeakV1.5143 240052.29-9.3942.9074-31.10PeakV1.5330 480452.64-4.3348.3174-25.69PeakV1.5175 720648.691.0149.7074-24.30PeakV1.5340 Worsecasemode:GFSK(DH5)Testchannel:Middle Frequency Meter Reading Factor Emission Level LimitsOver Detect or Type Ant. Pol. Antenna Height Table Angle (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V (m)(Degree) 488251.97-4.1147.8674-26.14peakH 1.5 178 732350.451.5151.9674-22.04peakH 1.5 217 488254.13-4.1150.0274-23.98peakV 1.5 52 732348.641.5150.1574-23.85peakV 1.5 245 Worsecasemode:GFSK(DH5)Testchannel:Highest Frequency Meter Reading Factor Emission Level LimitsOver Detect or Type Ant. Pol. Antenna Height Table Angle (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) H/V (m)(Degree) 2483.554.45-9.245.2574-28.75PeakH 1.5 312 496056.03-9.3946.6474-27.36PeakH 1.5 14 744052.95-4.3348.6274-25.38PeakH 1.5 211 2483.550.751.0151.7674-22.24PeakV 1.5 121 496054.14-9.244.9474-29.06PeakV 1.5 2 744053.08-9.3943.6974-30.31PeakV 1.5 204 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:77of82 Worsecasemode: π/4DQPSK (2DH5) Testchannel:Lowest Frequency Meter ReadingFactor Emission Le…

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SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:60of82 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:61of82 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:62of82 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:63of82 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 3DH5_Ant1_2402_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:64of82 3DH5_Ant1_2441_0~Reference 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:65of82 3DH5_Ant1_2480_0~Reference 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:66of82 Remark: Pretest9kHzto25GHz,findthehighestpointwhentesting,soonlytheworstdatawereshowninthetest report.PerFCCPart15.33(a)and15.31(o),Theamplitudeofspuriousemissionsfromintentionalradiators whichareattenuatedmorethan20dBbelowthepermissiblevalueneednotbereportedunlessspecifically requiredelsewhereinthispart. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:67of82 5.10 OtherrequirementsFrequencyHoppingSpreadSpectrumSystem TestRequirement:47CFRPart15CSection15.247(a)(1),(h)requirement: Thesystemshallhoptochannelfrequenciesthatareselectedatthesystemhopping ratefromaPseudorandomorderedlistofhoppingfrequencies.Eachfrequencymustbeusedequally ontheaveragebyeachtransmitter.Thesystemreceiversshallhaveinputbandwidthsthatmatchthe hoppingchannelbandwidthsoftheircorrespondingtransmittersandshallshiftfrequenciesin synchronizationwiththetransmittedsignals. Frequencyhoppingspreadspectrumsystemsarenotrequiredtoemployallavailablehopping channelsduringeachtransmission.However,thesystem,consistingofboththetransmitterandthe receiver,mustbedesignedtocomplywithalloftheregulationsinthissectionshouldthe transmitterbepresentedwithacontinuousdata(orinformation)stream.Inaddition,asystem employingshorttransmissionburstsmustcomplywiththedefinitionofafrequencyhoppingsystem andmustdistributeitstransmissionsovertheminimumnumberofhoppingchannelsspecifiedin thissection. Theincorporationofintelligencewithinafrequencyhoppingspreadspectrumsystemthatpermits thesystemtorecognizeotheruserswithinthespectrumbandsothatitindividuallyand independentlychoosesandadaptsitshopsetstoavoidhoppingonoccupiedchannelsispermitted. Thecoordinationoffrequencyhoppingsystemsinanyothermannerfortheexpresspurposeof avoidingthesimultaneousoccupancyofindividualhoppingfrequenciesbymultipletransmittersis notpermitted. Complianceforsection15.247(a)(1) AccordingtoBluetoothCoreSpecification,thepseudorandomsequencemaybegeneratedinanine- stageshiftregisterwhose5thand9thstage outputsareaddedinamodulo-twoadditionstage.Andtheresultisfedbacktotheinputofthefirst stage.ThesequencebeginswiththefirstONEof9consecutiveONEs;i.e.theshiftregisterisinitialized withnineones. •Numberofshiftregisterstages:9 •Lengthofpseudo-randomsequence:2 9 -1=511bits •Longestsequenceofzeros:8(non-invertedsignal) AnexampleofPseudorandomFrequencyHoppingSequenceasfollow: Eachfrequencyusedequallyontheaveragebyeachtransmitter. AccordingtoBluetoothCoreSpecification,BluetoothreceiversaredesignedtohaveinputandIF bandwidthsthatmatchthehoppingchannelbandwidthsofanyBluetoothtransmittersandshift frequenciesinsynchronizationwiththetransmittedsignals. Complianceforsection15.247(g) AccordingtoBluetoothCoreSpecification,theBluetoothsystemtransmitsthepacketwiththe pseudorandomhoppingfrequencywithacontinuousdataandtheshortbursttransmissionfromthe Bluetoothsystemisalsotransmittedunderthefrequencyhoppingsystemwiththepseudorandom hoppingfrequencysystem. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:68of82 Complianceforsection15.247(h) AccordingtoBluetoothCorespecification,theBluetoothsystemincorporateswithanadaptive systemtodetectotheruserwithinthespectrumbandsothatitindividuallyandindependentlyto avoidhoppingontheoccupiedchannels. AccordingtotheBluetoothCorespecification,theBluetoothsystemisdesignednothavetheability tocoordinatedwithotherFHSSSysteminanefforttoavoidthesimultaneousoccupancyofindividual hoppingfrequenciesbymultipletransmitter. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:69of82 5.11 RadiatedSpuriousEmission&Restrictedbands TestRequirement:47CFRPart15CSection15.209and15.205 TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a-2024 TestSite:MeasurementDistance:3m(Semi-AnechoicChamber) ReceiverSetup: FrequencyDetectorRBWVBWRemark 0.009MHz-0.090MHzPeak10kHz30kHzPeak 0.009MHz-0.090MHzAverage10kHz30kHzAverage 0.090MHz-0.110MHzQuasi-peak10kHz30kHzQuasi-peak 0.110MHz-0.490MHzPeak10kHz30kHzPeak 0.110MHz-0.490MHzAverage10kHz30kHzAverage 0.490MHz-30MHzQuasi-peak10kHz30kHzQuasi-peak 30MHz-1GHzPeak120kHz300kHzPeak Above1GHz Peak1MHz3MHzPeak Peak1MHz10HzAverage Limit: Frequency Fieldstrength (microvolt/meter) Limit (dBuV/m) Remark Measurement distance(m) 0.009MHz-0.490MHz2400/F(kHz)--300 0.490MHz-1.705MHz24000/F(kHz)--30 1.705MHz-30MHz30--30 30MHz-88MHz10040.0Quasi-peak3 88MHz-216MHz15043.5Quasi-peak3 216MHz-960MHz20046.0Quasi-peak3 960MHz-1GHz50054.0Quasi-peak3 Above1GHz50054.0Average3 Note:15.35(b),Unlessotherwisespecified,thelimitonpeakradiofrequency emissionsis20dBabovethemaximumpermittedaverageemissionlimit applicabletotheequipmentundertest.Thispeaklimitappliestothetotal peakemissionlevelradiatedbythedevice.

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:50of82 5.8 Band-edgeforRFConductedEmissions TestRequirement:47CFRPart15CSection15.247(d) TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a-2024 TestSetup: Remark:Offset=cableloss+attenuationfactor. Limit:Inany100kHzbandwidthoutsidethefrequencybandinwhichthespread spectrumintentionalradiatorisoperating,theradiofrequencypowerthatis producedbytheintentionalradiatorshallbeatleast20dBbelowthatinthe 100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthe desiredpower,basedoneitheranRFconductedoraradiatedmeasurement. ExploratoryTestMode:HoppingandNon-hoppingtransmittingwithallkindofmodulationandallkind ofdatatype FinalTestMode:Onlytheworstcaseisrecordedinthereport. TestResults:Pass SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:51of82 Testplotasfollows: DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:52of82 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:53of82 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 3DH5_Ant1_Low_2402 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:54of82 3DH5_Ant1_High_2480 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:55of82 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:56of82 5.9SpuriousRFConductedEmissions TestRequirement:47CFRPart15CSection15.247(d) TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a-2024 TestSetup: Remark:Offset=cableloss+attenuationfactor. Limit:Inany100kHzbandwidthoutsidethefrequencybandinwhichthespread spectrumintentionalradiatorisoperating,theradiofrequencypowerthatis producedbytheintentionalradiatorshallbeatleast20dBbelowthatinthe 100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthe desiredpower,basedoneitheranRFconductedoraradiated measurement. ExploratoryTestMode:Non-hoppingtransmittingwithallkindofmodulationandallkindofdatatype FinalTestMode:ThroughPre-scan,findtheDH5ofdatatypeistheworstcaseofGFSK modulationtype,2-DH5ofdatatypeistheworstcaseofπ/4DQPSK modulationtype,3-DH5ofdatatypeistheworstcaseof8DPSKmodulation type. TestResults:Pass SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:57of82 DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:58of82 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:59of82 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:40of82 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:41of82 5.7DwellTime TestRequirement:47CFRPart15CSection15.247(a)(1) TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a-2024 TestSetup: Remark:Offset=Cableloss+attenuationfactor. TestMode:Hoppingtransmittingwithallkindofmodulationandallkindofdatatype. Limit:0.4Second TestResults:Pass SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:42of82 TestModeFreq(MHz) BurstWidth [ms] TotalHops [Num] Result[s]Limit[s]Verdict DH1Hop0.4053200.13≤0.4PASS DH3Hop1.6531900.314≤0.4PASS DH5Hop2.893700.203≤0.4PASS 2DH1Hop0.4143200.132≤0.4PASS 2DH3Hop1.6581600.265≤0.4PASS 2DH5Hop2.8991100.319≤0.4PASS 3DH1Hop0.4143300.137≤0.4PASS 3DH3Hop1.6561400.232≤0.4PASS 3DH5Hop2.9001100.319≤0.4PASS Remark: Thetestperiod:T=0.4Second/Channelx79Channel=31.6s SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:43of82 Testplotasfollows: DH1_Ant1_Hop DH3_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:44of82 DH5_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:45of82 2DH1_Ant1_Hop 2DH3_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:46of82 2DH5_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:47of82 3DH1_Ant1_Hop 3DH3_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:48of82 3DH5_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:49of82

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:29of82 5.4 20dBOccupiedBandwidth TestRequirement:47CFRPart15CSection15.247(a)(1) TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a-2024 TestSetup: Remark:Offset=Cableloss+attenuationfactor. Limit:NA ExploratoryTestMode:Non-hoppingtransmittingwithallkindofmodulationandallkindofdatatype FinalTestMode:Onlytheworstcaseisrecordedinthereport. TestResults:Pass MeasurementData Testchannel 20dBOccupyBandwidth(MHz) GFSKπ/4DQPSK8DPSK Lowest 0.951.181.20 Middle 0.951.181.20 Highest 0.861.181.20 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:30of82 Testplotasfollows: DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:31of82 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:32of82 3DH5_Ant1_2402 3DH5_Ant1_2441 3DH5_Ant1_2480 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:33of82 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:34of82 5.5 CarrierFrequenciesSeparation TestRequirement:47CFRPart15CSection15.247(a)(1) TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a-2024 TestSetup: Remark:Offset=Cableloss+attenuationfactor. Limit:2/3ofthe20dBbandwidth Remark:thetransmissionpowerislessthan0.125W. ExploratoryTestMode:Hoppingtransmittingwithallkindofmodulationandallkindofdatatype FinalTestMode:Onlytheworstcaseisrecordedinthereport. TestResults:Pass SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:35of82 MeasurementData TestModeFreq(MHz)Result[MHz]Limit[MHz]Verdict DH5Hop1.003≥0.633PASS 2DH5Hop0.997≥0.787PASS 3DH5Hop1.072≥0.800PASS Mode 20dBbandwidth(MHz) (worsecase) Limit(MHz) (CarrierFrequenciesSeparation) GFSK0.95≥0.633 π/4DQPSK1.18≥0.787 8DPSK 1.20 ≥0.800 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:36of82 Testplotasfollows: DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:37of82 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:38of82 5.6 HoppingChannelNumber TestRequirement:47CFRPart15CSection15.247(a)(1) TestMethod:ANSI C63.10-2020+Cor.1-2023+C63.10a-2024+ErratatoC63.10a- 2024 TestSetup: Remark:Offset=Cableloss+attenuationfactor. Limit:Atleast15channels ExploratoryTestMode:hoppingtransmittingwithallkindofmodulationandallkindofdatatype FinalTestMode:Onlytheworstcaseisrecordedinthereport. TestResults:Pass MeasurementData ModeHoppingchannelnumbersLimit GFSK79≥15 π/4DQPSK79≥15 8DPSK79≥15 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:39of82 Testplotasfollows: DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260500939E-02 Applicant:ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant:11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China EquipmentUnderTest(EUT): Product: SmartWatch ModelNo.: TGW02 TestModelNo.:TGW02 BrandName: IDO FCCID:2AHFT8202 Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-05-11 DateofTest:2026-05-11to2026-05-19 DateofIssue:2026-7-24 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:2of82 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260500939E-02Rev.01 Initialreport 2026-7-24 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:3of82 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement47CFRPart15.203/PASS ACPowerLineConducted Emission 47CFRPart15,SubpartCSection 15.207 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS ConductedPeakOutput Power 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS 20dBOccupiedBandwidth47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS CarrierFrequencies Separation 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS HoppingChannelNumber47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS DwellTime47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS PseudorandomFrequency HoppingSequence 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS Band-edgeforRF ConductedEmissions 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS RFConductedSpurious Emissions 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS RadiatedSpurious emissions 47CFRPart15.209 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15.205/15.209 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:4of82 Remark: Thetestedsample(s)andthesampleinformationareprovidedbytheclient. Tx:InthiswholereportTx(ortx)meansTransmitter. Rx:InthiswholereportRx(orrx)meansReceiver. RF:InthiswholereportRFmeansRadiatedFrequency. CH:InthiswholereportCHmeanschannel. Volt:InthiswholereportVoltmeansVoltage. Temp:InthiswholereportTempmeansTemperature. Humid:InthiswholereportHumidmeanshumidity. Press:InthiswholereportPressmeansPressure. N/A:Inthiswholereportnotapplication SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500939E-02 Page:5of82 3Contents Page 1VERSION..........................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................3 3CONTENTS......................................................................................................................................................................5 4GENERALINFORMATION...........................................................................................................................................6 4.1CLIENTINFORMATION.................................................................................................................................................6 4.2GENERALDESCRIPTIONOFEUT.................................................................................................................................6 4.3ADDITIONALINSTRUCTIONS........................................................................................................................................8 4.4TESTENVIRONMENT...................................................................................................................................................9 4.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................9 4.6TESTCONFIGURATION................................................................................................................................................9 4.7STATEMENTOFTHEMEASUREMENTUNCERTAINTY..................................................................................................10 4.8TESTLOCATION........................................................................................................................................................11 4.9TESTFACILITY..........................................................................................................................................................11 4.10ABNORMALITIESFROMSTANDARDCONDITIONS....................................................................................................11 4.11OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................11 4.12EQUIPMENTLIST.......................................................................................................................…

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ShenzhenDOIntelligentTechnologyCo.,Ltd Date:July27,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestforFCCID:2AHFT8202 [ShenzhenDOIntelligentTechnologyCo.,Ltd](“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature)： (Applicantprintedname)：WuDajun (Title)：Generalmanager_ (Company)：ShenzhenDOIntelligentTechnologyCo.,Ltd ShenzhenDOIntelligentTechnologyCo.,Ltd Date:July27,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestforFCCID:2AHFT8202 [ShenzhenDOIntelligentTechnologyCo.,Ltd](“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListas anentityproducing“covered”equipment. Sincerely, (Applicantsignature)： (Applicantprintedname)：WuDajun (Title)：Generalmanager_ (Company)：ShenzhenDOIntelligentTechnologyCo.,Ltd

Report No.: TSEA26050046301 Appendix C EX3DV4-SN 7812 DAE4-SN 1846 D2450V2-SN 1099

Report No.: TSEA26050046301 Appendix A System Check 2450 MHz Head Scans Setup Area ScanZoom Scan Grid Extents [mm]40.0 x 96.030.0 x 30.0 x 30.0 Grid Steps [mm]10.0 x 12.05.0 x 5.0 x 1.5 Sensor Surface [mm]3.01.4 Graded GridN/AYes Grading RatioN/A1.5 MAIAN/AN/A Surface DetectionVMS + 6pVMS + 6p Scan MethodMeasuredMeasured Measurement Results Area ScanZoom Scan Date2026-05-27, 08:382026-05-27, 08:44 psSAR1g [W/Kg]5.425.42 psSAR10g [W/Kg]2.532.53 Power Drift [dB]0.000.00 Power ScalingDisabledDisabled Scaling Factor [dB] TSL CorrectionNo correctionNo correction Test Laboratory: TOWE Lab System Performance Check Report Summary DipoleFrequency [MHz]TSLPower [dBm]Dev. 1g [%]Dev. 10g [%]Dev. Peak [%]Iso. Error [%] D2450V2 - SN10992450.0HSL20.05.56.18.01.3 Exposure Conditions Phantom Section, TSLTest Distance [mm]BandGroup, UIDFrequency [MHz], Channel NumberConversion FactorTSL Conductivity [S/m]TSL Permittivity Flat, Head Simulating Liquid10CW, 0--2450.000, 06.971.8239.9 Hardware Setup PhantomTSLProbe, Calibration DateDAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 2168HSL2450EX3DV4 - SN7858, 2026-02-20DAE4ip Sn1846, 2026-01-07

Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. Report No.: TSEA26050046301 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. FCC SAR Test Report Applicant: Shenzhen DO Intelligent Technology Co., Ltd EUT Description: Smart Watch Model: TGW02 Brand: IDO FCC ID: 2AHFT8202 Standards: FCC 47CFR §2.1093 Date of Receipt: 2026/05/18 Date of Test: 2026/05/27 Date of Issue: 2026/06/09 TOWE. tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. the results documented in this report apply only the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility assure that additional production units of the model are manufactured with identical electrical and mechanical components. All sample tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. without written approval of TOWE, the test …

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