2AHFT900Smart Watch

Report No.: TSEA26070069601 Appendix C EX3DV4-SN 7858 DAE4-SN 1846 D2450V2-SN 1099

Report No.: TSEA26070069601 Appendix D 1. Test Sample Photo 1: Front View Photo 2: Back View Photo 3: Antenna Locations Report No.: TSEA26070069601 2. Test positions Photo 4: Front side 10mm Photo 5: Back side 0mm

ReportNo.:CQASZ20260601331E 1Photographs-EUTTestSetup 1.1RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: ReportNo.:CQASZ20260601331E Above1GHz: 1.2 ConductedEmission ReportNo.:CQASZ20260601331E 1.3 RFConductedmeasurement

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 GTX22 BT&GPS L1 2026-07-17 GPS_SWR BT_SWR BT efficiecy BT Gain=-4.1dBi Free-space Freq （MHz） Effi (%) Gain （dBi） 2400 11.0%-4.8 2410 11.5%-4.6 2420 12.1%-4.5 2430 12.6%-4.3 2440 12.8%-4.1 2450 12.6%-4.3 2460 12.2%-4.5 2470 11.5%-4.6 2490 11.2%-4.7 GPS efficiecy GPS Gain=-4.2dBi Free-space Freq （MHz） Effi (%) Gain （dBi） 155010.3%-4.8 155510.5%-4.7 156010.9%-4.6 156511.6%-4.5 157012.6%-4.3 157514.1%-4.2 158012.5%-4.5 158511.3%-4.7 BT GPS Antenna size mm BT Antenna size mm GPS Thank you！

CQASZ20260601331E-02 AppendixA:20dBEmissionBandwidth TestResult TestModeAntennaFreq(MHz) 20dB EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant1 24020.952401.562402.50------ 24410.952440.562441.51------ 24800.942479.562480.50------ 2DH5Ant1 24021.242401.392402.63------ 24411.242440.392441.63------ 24801.222479.402480.62------ 3DH5Ant1 24021.202401.432402.63------ 24411.192440.432441.62------ 24801.172479.432480.61------ TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 3DH5_Ant1_2480 AppendixB:OccupiedChannelBandwidth TestResult TestModeFreq(MHz) OCB[MHz] Limit[MHz]Verdict DH5 24020.899------ 24410.896------ 24800.878------ 2DH5 24021.154------ 24411.154------ 24801.142------ 3DH5 24021.142------ 24411.145------ 24801.13------ TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 3DH5_Ant1_2480 AppendixC:Maximumconductedoutputpower TestResultPeak Test Mode Antenna Freq (MHz) Conducted Peak Powert [dBm] Conducted Limit [dBm] Verdict DH5Ant1 24026.58≤30PASS 24418.64≤30PASS 24807.99≤30PASS 2DH5Ant1 24026.46≤30PASS 24418.37≤30PASS 24807.88≤30PASS 3DH5Ant1 24026.42≤30PASS 24418.43≤30PASS 24807.78≤30PASS TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 3DH5_Ant1_2480 AppendixD:Carrierfrequencyseparation TestResult TestModeFreq(MHz)Result[MHz]Limit[MHz]Verdict DH5Hop1.009≥0.633PASS 2DH5Hop0.98≥0.827PASS 3DH5Hop1.032≥0.800PASS TestGraphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop AppendixE:Timeofoccupancy TestResult TestModeFreq(MHz) BurstWidth [ms] TotalHops [Num] Result[s]Limit[s]Verdict DH1Hop0.3683200.118≤0.4PASS DH3Hop1.6091600.257≤0.4PASS DH5Hop2.8501100.314≤0.4PASS 2DH1Hop0.3763200.12≤0.4PASS 2DH3Hop1.6211600.259≤0.4PASS 2DH5Hop2.8621100.315≤0.4PASS 3DH1Hop0.3763200.12≤0.4PASS 3DH3Hop1.6201600.259≤0.4PASS 3DH5Hop2.8621100.315≤0.4PASS TestGraphs DH1_Ant1_Hop DH3_Ant1_Hop DH5_Ant1_Hop 2DH1_Ant1_Hop 2DH3_Ant1_Hop 2DH5_Ant1_Hop 3DH1_Ant1_Hop 3DH3_Ant1_Hop 3DH5_Ant1_Hop AppendixF:Numberofhoppingchannels TestResult TestModeFreq(MHz)Result[Num]Limit[Num]Verdict DH5Hop79≥15PASS 2DH5Hop79≥15PASS 3DH5Hop79≥15PASS TestGraphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop AppendixG:Bandedgemeasurements TestResult TestModeChNameFreq(MHz) RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Low24026.37-49.42≤-13.63PASS High24807.71-51.92≤-12.29PASS LowHop_24025.84-52.6≤-14.16PASS HighHop_24808.77-51.64≤-11.23PASS 2DH5 Low24026.30-48.65≤-13.7PASS High24806.91-52.3≤-13.09PASS LowHop_2402-0.03-52.15≤-20.03PASS HighHop_24807.82-51.84≤-12.18PASS 3DH5 Low24026.43-48.97≤-13.57PASS High24807.71-52.22≤-12.29PASS LowHop_24020.89-51.09≤-19.11PASS HighHop_24807.42-51.72≤-12.58PASS TestGraphs DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 3DH5_Ant1_Low_2402 3DH5_Ant1_High_2480 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 AppendixH:ConductedSpuriousEmission TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna FrequencyRange (MHz) Ref Level (MHz) Max Power (dBm) Limit (dBm) Verdict 1NTNVDH524021MbpsANT1 Reference0.12.91// 30～10000.1-52.12≤-17.09Pass 1000～265000.1-40.71≤-17.09Pass 2NTNVDH524411MbpsANT1 Reference0.13.6// 30～10000.1-50.00≤-16.40Pass 1000～265000.1-40.02≤-16.40Pass 3NTNVDH524801MbpsANT1 Reference0.14.22// 30～10000.1-52.40≤-15.78Pass 1000～265000.1-41.16≤-15.78Pass 4NTNV2DH524022MbpsANT1 Reference0.12.78// 30～10000.1-50.56≤-17.22Pass 1000～265000.1-40.24≤-17.22Pass 5NTNV2DH524412MbpsANT1 Reference0.13.5// 30～10000.1-51.65≤-16.50Pass 1000～265000.1-41.01≤-16.50Pass 6NTNV2DH524802MbpsANT1 Reference0.14.13// 30～10000.1-51.74≤-15.87Pass 1000～265000.1-40.16≤-15.87Pass 7NTNV3DH524023MbpsANT1 Reference0.12.79// 30～10000.1-51.81≤-17.21Pass 1000～265000.1-40.40≤-17.21Pass 8NTNV3DH524413MbpsANT1 Reference0.13.5// 30～10000.1-51.93≤-16.50Pass 1000～265000.1-40.77≤-16.50Pass 9NTNV3DH524803MbpsANT1Reference0.14.1// 30～10000.1-51.57≤-15.90Pass 1000～265000.1-40.64≤-15.90Pass TestGraphs NTNV_DH5_2402_1Mbps NTNV_DH5_2441_1Mbps NTNV_DH5_2480_1Mbps NTNV_2DH5_2402_2Mbps NTNV_2DH5_2441_2Mbps NTNV_2DH5_2480_2Mbps NTNV_3DH5_2402_3Mbps NTNV_3DH5_2441_3Mbps NTNV_3DH5_2480_3Mbps AppendixI:DutyCycle TestResult TestModeFreq(MHz) ONTime [ms] Period [ms] DC [%] xFactor LimitVerdict DH5 24022.873.7576.531.16------ 24412.873.7676.331.17------ 24802.873.7576.531.16------ 2DH5 24022.883.7576.801.15------ 24412.883.7576.801.15------ 24802.893.7676.861.14------ 3DH5 24022.883.7576.801.15------ 24412.883.7576.801.15------ 24802.893.7676.861.14------ TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441

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.:CQASZ20260601331E-02 Applicant:ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant:11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China EquipmentUnderTest(EUT): Product: SmartWatch ModelNo.: GTX22 TestModelNo.:GTX22 BrandName: IDO FCCID: 2AHFT900 Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-06-25 DateofTest:2026-06-25to2026-07-08 DateofIssue:2026-7-21 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260601331E-02 Page:2of43 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260601331E-02Rev.01 Initialreport 2026-7-21 Note: Thedifferencebetweenproduct#1andproduct#2isthatthescreen,batterymodelisdifferentincluding havingdifferentsupplier.Thekeydifferencesaretheappearanceandthemodelnumber.Thesechangesdo notaffectRFperformance. Screen: 1#: Supplier:JIANGXIHUALINOPTRONICSCO.,LTD. Model:ZC-A1D43W-190 2#: Supplier:AsiaCreationOptoelectronics(Shenzhen)Co.,Ltd. Model:ACOT143WH02078-D1-T2 Li-ionBattery: 1#: SHENZHENSUNHEENERGYCO.,LTD. Model:551925 2#: Supplier:ZHONGSHANZHONGWANGDENEWENERGYTECHNOLOGYCO.,LT. Model:551925 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260601331E-02 Page:3of43 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.:CQASZ20260601331E-02 Page:4of43 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.:CQASZ20260601331E-02 Page:5of43 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.....................................................................…

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Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. Report No.: TSEA26070069601 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: GTX22 Brand: IDO FCC ID: 2AHFT900 Standards: FCC 47CFR §2.1093 Date of Receipt: 2026/07/07 Date of Test: 2026/07/10 Date of Issue: 2026/08/03 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 to the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility to assure that additional production units of the model are manufactured with identical electrical and mechanical components. All samples 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 report shall not be reproduced except in full. Jim Huang Approved By: Jack Li Reviewed By: Page 2 / 23 Report No.: TSEA26070069601 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. Revision History Rev. Issue Date Description Revised by 01 2026/08/03 Original Jack Li Page 3 / 23 Report No.: TSEA26070069601 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. Table of Contents 1 Summary of Test Results .................................................................................................................................. 5 2 Guidance Applied ............................................................................................................................................... 6 3 Lab Information .................................................................................................................................................. 6 3.1 Testing Location ...................................................................................................................................................................... 6 3.2 Test Facility / Accreditations ................................................................................................................................................ 6 3.3 Ambient Condition .................................................................................................................................................................. 6 4 Client Information ............................................................................................................................................... 6 4.1 Applicant ................................................................................................................................................................................... 6 4.2 Manufacturer ............................................................................................................................................................................ 6 4.3 Factory ....................................................................................................................................................................................... 6 5 Product Information ........................................................................................................................................... 7 6 RF Exposure Limits ........................................................................................................................................... 8 7 Introduction ......................................................................................................................................................... 9 7.1 SAR Definition .......................................................................................................................................................................... 9 8 SAR Measurements System ........................................................................................................................... 10 8.1 The SAR Measurement Set-up ........................................................................................................................................... 10 8.2 E-Field Probe .......................................................................................................................................................................... 11 8.3 Data Acquisition Electronics (DAE) .................................................................................................................................. 11 8.4 Phantom .................................................................................................................................................................................. 12 8.5 Device Holder ....................................................................................................…

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ShenzhenDOIntelligentTechnologyCo.,Ltd Date:July22,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestforFCCID:2AHFT900 [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:July22,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestforFCCID:2AHFT900 [ShenzhenDOIntelligentTechnologyCo.,Ltd](“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListas anentityproducing“covered”equipment. Sincerely, (Applicantsignature)： (Applicantprintedname)：WuDajun (Title)：Generalmanager_ (Company)：ShenzhenDOIntelligentTechnologyCo.,Ltd

Report No.: TSEA26070069601 Appendix B BT Scans Setup Area ScanZoom Scan Grid Extents [mm]96.0 x 96.030.0 x 30.0 x 30.0 Grid Steps [mm]12.0 x 12.05.0 x 5.0 x 5.0 Sensor Surface [mm]3.01.4 Graded GridN/AYes Grading RatioN/A1.5 MAIAYY Surface DetectionVMS + 6pVMS + 6p Scan MethodMeasuredMeasured Measurement Results Area ScanZoom Scan Date2026-07-10, 14:032026-07-10, 14:08 psSAR1g [W/Kg]0.010.01 psSAR10g [W/Kg]0.0050.004 Power Drift [dB]0.120.13 Power ScalingDisabledDisabled Scaling Factor [dB] TSL CorrectionNo correctionNo correction M2/M1 [%]65.1 Dist 3dB Peak [mm]9.4 Test Laboratory: TOWE Lab Measurement Report for GTX22, FRONT, ISM 2.4 GHz Band, IEEE 802.15.1 Bluetooth (GFSK, DH5), Channel 0 (2402.000 MHz) Device Under Test Properties ModelDimensions [mm] GTX2246.0 x 46.0 x 12.5 Exposure Conditions Phantom Section, TSLPosition, Test Distance [mm] BandGroup, UIDFrequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, Head Simulating Liquid FRONT, 10.00ISM 2.4 GHz Band Bluetooth, 10032- CAA 2402.000, 06.971.7439.8 Hardware Setup PhantomTSLProbe, Calibration DateDAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 2168HSL2450EX3DV4 - SN7858, 2026-02-20DAE4ip Sn1846, 2026-01-07 Scans Setup Area ScanZoom Scan Grid Extents [mm]96.0 x 96.030.0 x 30.0 x 30.0 Grid Steps [mm]12.0 x 12.05.0 x 5.0 x 5.0 Sensor Surface [mm]3.01.4 Graded GridN/AYes Grading RatioN/A1.5 MAIAYY Surface DetectionVMS + 6pVMS + 6p Scan MethodMeasuredMeasured Measurement Results Area ScanZoom Scan Date2026-07-10, 14:292026-07-10, 14:34 psSAR1g [W/Kg]0.0360.041 psSAR10g [W/Kg]0.0170.017 Power Drift [dB]-0.08-0.07 Power ScalingDisabledDisabled Scaling Factor [dB] TSL CorrectionNo correctionNo correction M2/M1 [%]59.8 Dist 3dB Peak [mm]8.8 Test Laboratory: TOWE Lab Measurement Report for GTX22, BACK, ISM 2.4 GHz Band, IEEE 802.15.1 Bluetooth (GFSK, DH5), Channel 0 (2402.000 MHz) Device Under Test Properties ModelDimensions [mm] GTX2246.0 x 46.0 x 12.5 Exposure Conditions Phantom Section, TSLPosition, Test Distance [mm] BandGroup, UIDFrequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, Head Simulating Liquid BACK, 0.00ISM 2.4 GHz Band Bluetooth, 10032- CAA 2402.000, 06.971.7439.8 Hardware Setup PhantomTSLProbe, Calibration DateDAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 2168HSL2450EX3DV4 - SN7858, 2026-02-20DAE4ip Sn1846, 2026-01-07

C Report No.: TSEA26070069601 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 Date2026-07-10, 08:352026-07-10, 08:43 psSAR1g [W/Kg]5.575.56 psSAR10g [W/Kg]2.592.58 Power Drift [dB]0.01-0.02 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 - SN10992450.0HSL20.07.88.711.0-1.4 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, 06.971.8139.8 Hardware Setup PhantomTSLProbe, Calibration DateDAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 2168HSL2450EX3DV4 - SN7858, 2026-02-20DAE4ip Sn1846, 2026-01-07

ReportNo.:CQASZ20260601329E Photographs-EUTConstructionalDetails 1# ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E 2#

GTX22底壳镭雕 7X5mm 5X5mm 5.5X2.8mm 7X5mm 3X10.4mm F C C I D : 2 A H F T 9 0 0 I C : 2 3 0 2 3 - 2 A H F T 9 0 0 GTX22

ReportNo.:CQASZ20260601329E Photographs-EUTConstructionalDetails ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E ReportNo.:CQASZ20260601329E

ShenzhenDOIntelligentTechnologyCo.,Ltd Date:July22,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR Product:SmartWatch ModelNO.: GTX22 FCCID:2AHFT900 ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe(Blockdiagram,circuitschematic,and operatingdescription)requiredtobesubmittedwiththisapplicationbepermanently withheldfrompublicreview. SPECIFYREASONFORREQUEST(i.e.theabovedocumentsarecompany proprietaryinformationthatcouldnevergetintothepossessionofyour competition). Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, (Signature) ： (Printname)：WuDajun (Title) ： Generalmanager_ (Company) ： ShenzhenDOIntelligentTechnologyCo.,Ltd

ShenzhenDOIntelligentTechnologyCo.,Ltd Date:July22,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION FCCID:2AHFT900 ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenHuaxiaTestingTechnologyCo.,Ltd.toacton ourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthesigning ofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, (Signature) ： (Printname)：WuDajun (Title)：Generalmanager_ (Company)：ShenzhenDOIntelligentTechnologyCo.,Ltd

ShenzhenDOIntelligentTechnologyCo.,Ltd 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,LonghuaDistrict, Shenzhen,China FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 2026-7-22 U.S.AgentDesignation {ShenzhenDOIntelligentTechnologyCo.,Ltd}acknowledgestheirconsentforthefollowingcontactlocatedin theUnitedStatestoactastheiragentforserviceofprocessfortheequipmentforwhichauthorizationissought (FCCID:2AHFT900): NameandcompanyofU.S.agent:BridgeportAdvisoryLLC PhysicalU.S.addressofagent:3330W38THPL,CHICAGO,IL60632,UnitedStates FRNofU.S.agent:0037566148 EmailaddressofU.S.agent:[email protected] ContactNO.:(708)680-6688 BridgeportAdvisoryLLC.acknowledgestheirobligationtoacceptserviceofprocessonbehalfof{Shenzhen DOIntelligentTechnologyCo.,Ltd}. {ShenzhenDOIntelligentTechnologyCo.,Ltd}withtheFRN[{0025289893}]acceptsitsobligationtomaintain anagentforserviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheveris later. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirementslistedunder§ 2.911(d)(7). TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB 986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotify theFCCwithin30daysviathegrantingTCB. Sincerely, Signature {WuDajun} {Generalmanager} {ShenzhenDOIntelligentTechnologyCo.,Ltd} Signature MrYongLiu ManagingMember BridgeportAdvisoryLLC 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5