2BSUAX02EWatch Buds

Rev 1/26/2023 DONGGUAN IMOO TECHNOLOGY LIMITED Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: January 5, 2026 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BSUAX02E DONGGUAN IMOO TECHNOLOGY LIMITED (“the applicant”) certifies that, as of the date of the filing of the application,FCC US Agent, LLC is our designated U.S. agent for service of process for the above referenced FCC Applicant FRN:0037614773 ID. DONGGUAN IMOO TECHNOLOGY LIMITED accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. FCC US Agent, LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, DONGGUAN IMOO TECHNOLOGY LIMITED U.S. Agent: FCC US Agent, LLC Company Representative: Timothy WU Company Representative: Tim Payne Signature: Signature:

Rev 2/17/2023 DONGGUAN IMOO TECHNOLOGY LIMITED Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: January 5, 2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BSUAX02E DONGGUAN IMOO TECHNOLOGY LIMITED (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. DONGGUAN IMOO TECHNOLOGY LIMITED (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24- 886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Signature: Printed name: Timothy WU

Rev 2/17/2023 DONGGUAN IMOO TECHNOLOGY LIMITED Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: January 5, 2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BSUAX02E DONGGUAN IMOO TECHNOLOGY LIMITED (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Signature: Printed name: Timothy WU

Rev 11/20/07 DONGGUAN IMOO TECHNOLOGY LIMITED Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Confidentiality Request regarding application for certification of FCC ID: 2BSUAX02E Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name (Block Diagram, Schematics, Operational Description) (Block Diagram.pdf, Schematics.pdf, Operational Description.pdf,) The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request that the information attached to this application be temporarily confidential for 180 days as outlined below: Exhibit Type File Name User Manual External photos Internal Photos Test Setup Photos User Manual.pdf, External photos.pdf Internal Photos.pdf, Test Setup Photos.PDF Sincerely, Signature: printed name: Timothy WU Date: January 5, 2026

G:\认证项目管理\认证项目管理\穿戴\NX02\FCC 签字文件_耳机\FCC 签字文件_耳机\FCC POA Letter.docx DONGGUAN IMOO TECHNOLOGY LIMITED Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: January 5, 2026 SUBJECT: FCC Application for (FCC ID: 2BSUAX02E ) To Whom It May Concern: We, the undersigned, hereby authorize Liting Nong at Centre Testing International Group Co., Ltd / Hongwei Industrial Park, Zone 70, Bao’an District, Shenzhen, Guangdong, China on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Liting Nong at Centre Testing International Group Co., Ltd / Hongwei Industrial Park, Zone 70, Bao’an District, Shenzhen, Guangdong, China on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section Regards, Signature: printed name: Timothy WU

ReportNo.:EED32R81755103Page1of7 RFExposureEvaluationReport Product:WatchBuds Trademark:imoo Model/Typereference:E2502AO SerialNumber:N/A ReportNumber:EED32R81755103 FCCID:2BSUAX02E DateofIssue:Dec.12,2025 TestStandards: 47CFRPart1.1307 47CFRPart1.1310 47CFRPart2.1093 KDB447498D04InterimGeneralRF ExposureGuidancev01 Testresult:PASS Preparedfor: DONGGUANIMOOTECHNOLOGYLIMITED Room1102,Building1,No.28,DongmenMiddleRoad,Chang'anTown, DongguanCity,GuangdongProvince，523850，China Preparedby: CentreTestingInternationalGroupCo.,Ltd. HongweiIndustrialPark,Zone70,Bao’anDistrict, Shenzhen,Guangdong,China TEL:+86-755-33683668 FAX:+86-755-33683385 Compiledby:Reviewedby: LucasLuKevenTan Approvedby:Date:Dec.12,2025 AaronMa CheckNo.:2527180925 ReportNo.:EED32R81755103Page2of7 1Contents Page 1CONTENTS........................................................................................................................................................................2 2GENERALINFORMATION..............................................................................................................................................3 2.1CLIENTINFORMATION...................................................................................................................................................3 2.2GENERALDESCRIPTIONOFEUT...................................................................................................................................3 2.3PRODUCTSPECIFICATIONSUBJECTIVETOTHISSTANDARD...........................................................................................3 2.4TESTLOCATION.............................................................................................................................................................4 2.5DEVIATIONFROMSTANDARDS......................................................................................................................................4 2.6ABNORMALITIESFROMSTANDARDCONDITIONS..........................................................................................................4 2.7OTHERINFORMATIONREQUESTEDBYTHECUSTOMER................................................................................................4 3SAREVALUATION...........................................................................................................................................................5 3.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................5 3.1.1Limits....................................................................................................................................................................5 3.1.2TestProcedure....................................................................................................................................................5 3.1.3EUTRFExposureEvaluation..........................................................................................................................6 ReportNo.:EED32R81755103Page3of7 2GeneralInformation 2.1ClientInformation Applicant: DONGGUANIMOOTECHNOLOGYLIMITED AddressofApplicant: Room1102,Building1,No.28,DongmenMiddleRoad,Chang'anTown, DongguanCity,GuangdongProvince，523850，China Manufacturer: DONGGUANIMOOTECHNOLOGYLIMITED AddressofManufacturer: Room1102,Building1,No.28,DongmenMiddleRoad,Chang'anTown, DongguanCity,GuangdongProvince，523850，China Factory: DongguanZackElectronicTechnologyCo.,Ltd. AddressofFactory: Room601，Building9,No.11,HumenSection,Tai'anRoad,HumenTown, DongguanCity,GuangdongProvinceChina 2.2GeneralDescriptionofEUT ProductName: WatchBuds ModelNo.(EUT): E2502AO TradeMark: imoo 2.3 ProductSpecificationsubjectivetothisstandard FrequencyRange:BLE/BT:2402MHz~2480MHz ModulationType:BLE:GFSK BT:GFSK,π/4DQPSK,8DPSK TestPowerGrade:Default TestSoftwareofEUT:wvt_gui.exe AntennaType: FPCAntenna AntennaGain: -3.7dBi PowerSupply: Adapter: DC5V Battery: DC3.87V SampleReceivedDate: Sep.18,2025 SampletestedDate: Sep.18,2025toOct.14,2025 ReportNo.:EED32R81755103Page4of7 2.4TestLocation Alltestswereperformedat: CentreTestingInternationalGroupCo.,Ltd HongweiIndustrialPark,Zone70,Bao'anDistrict,Shenzhen,Guangdong,China Telephone:+86(0)75533683668Fax:+86(0)75533683385 Notestsweresub-contracted. FCCDesignationNo.:CN1164,TestFirmRegistrationNo.:260439 2.5DeviationfromStandards None. 2.6AbnormalitiesfromStandardConditions None. 2.7OtherInformationRequestedbytheCustomer None. ReportNo.:EED32R81755103Page5of7 3SAREvaluation 3.1RFExposureComplianceRequirement 3.1.1Limits TheSAR-basedexemptionformulaof§1.1307(b)(3)(i)(B),repeatedhereasFormula(B.2),appliesfor singlefixed,mobile,andportableRFsourceswithavailablemaximumtime-averagedpoweroreffective radiatedpower(ERP),whicheverisgreater,oflessthanorequaltothethresholdPth(mW). Thismethodshallonlybeusedatseparationdistancesfrom0.5cmto40cmandatfrequenciesfrom 0.3GHzto6GHz(inclusive).PthisgivenbyFormula andfisinGHz,distheseparationdistance(cm),andERP20cmisperFormula(B.1). The1mWBlanketExemptionof§1.1307(b)(3)(i)(A)appliesforsinglefixed,mobile,andportableRF sourceswithavailablemaximumtime-averagedpowerofnomorethan1mW,regardlessofseparation distance. 3.1.2TestProcedure SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. ReportNo.:EED32R81755103Page6of7 3.1.3EUTRFExposureEvaluation ForStandalone: Note： ①EIRP=conductedpower+antennagain； ②ERP=EIRP-2.15; ③EIRP(dBm)=Fieldstrengthofthefundamentalsignal(dBuV/m@3m)–95.23; ④ERP(mW)=10^(ERP(dBm)/10); ⑤Theestimationdistanceis0.5cm; ⑥ThetestdatapleaserefertothereportofEED32R81755101,EED32R81755102andonlytheworstcase datawasrecordedinthereport. ReportNo.:EED32R81755103Page7of7 Statement 1.Thisreportisconsideredinvalidwithoutapprovedsignature,specialsealandthesealontheperforation; 2.TheCompanyNameshownonReportandAddress,thesample(s)andsampleinformationwas/were providedbytheapplicantwhoshouldberesponsiblefortheauthenticitywhichCTIhasn'tverif…

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ReportNo.:EED32R81755101Page1of34 Appendix:BluetoothLE-L ReportNo.:EED32R81755101Page2of34 Contents DutyCycle...........................................................................................................................................................................................................3 MaximumPeakConductedOutputPower.........................................................................................................................................................7 -6dBBandwidth.................................................................................................................................................................................................11 OccupiedChannelBandwidth..........................................................................................................................................................................15 MaximumPowerSpectralDensityLevel.........................................................................................................................................................19 BandEdge.........................................................................................................................................................................................................23 ConductedRFSpuriousEmission...................................................................................................................................................................28 ReportNo.:EED32R81755101Page3of34 DutyCycle ConditionModeFrequency(MHz)AntennaDutyCycle(%)CorrectionFactor(dB)1/T(kHz) NVNTBLE1M2402Ant128.485.455.62 NVNTBLE1M2440Ant129.185.355.48 NVNTBLE1M2480Ant129.25.355.48 NVNTBLE2M2402Ant116.957.719.43 NVNTBLE2M2440Ant116.887.739.48 NVNTBLE2M2480Ant116.887.739.48 ReportNo.:EED32R81755101Page4of34 TestGraphs DutyCycleNVNTBLE1M2402MHzAnt1 DutyCycleNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page5of34 DutyCycleNVNTBLE1M2480MHzAnt1 DutyCycleNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page6of34 DutyCycleNVNTBLE2M2440MHzAnt1 DutyCycleNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page7of34 MaximumPeakConductedOutputPower ConditionModeFrequency (MHz) AntennaConductedPower (dBm) DutyFactor (dB) TotalPower (dBm) Limit (dBm) Verdict NVNTBLE1M2402Ant12.7802.7830Pass NVNTBLE1M2440Ant14.6204.6230Pass NVNTBLE1M2480Ant12.2902.2930Pass NVNTBLE2M2402Ant12.702.730Pass NVNTBLE2M2440Ant12.8102.8130Pass NVNTBLE2M2480Ant14.0204.0230Pass ReportNo.:EED32R81755101Page8of34 TestGraphs PeakPowerNVNTBLE1M2402MHzAnt1 PeakPowerNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page9of34 PeakPowerNVNTBLE1M2480MHzAnt1 PeakPowerNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page10of34 PeakPowerNVNTBLE2M2440MHzAnt1 PeakPowerNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page11of34 -6dBBandwidth ConditionModeFrequency(MHz)Antenna-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict NVNTBLE1M2402Ant10.690.5Pass NVNTBLE1M2440Ant10.6980.5Pass NVNTBLE1M2480Ant10.7020.5Pass NVNTBLE2M2402Ant11.1810.5Pass NVNTBLE2M2440Ant11.1850.5Pass NVNTBLE2M2480Ant11.1830.5Pass ReportNo.:EED32R81755101Page12of34 TestGraphs -6dBBandwidthNVNTBLE1M2402MHzAnt1 -6dBBandwidthNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page13of34 -6dBBandwidthNVNTBLE1M2480MHzAnt1 -6dBBandwidthNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page14of34 -6dBBandwidthNVNTBLE2M2440MHzAnt1 -6dBBandwidthNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page15of34 OccupiedChannelBandwidth ConditionModeFrequency(MHz)Antenna99%OBW(MHz) NVNTBLE1M2402Ant11.009 NVNTBLE1M2440Ant11.008 NVNTBLE1M2480Ant11.01 NVNTBLE2M2402Ant12.032 NVNTBLE2M2440Ant12.03 NVNTBLE2M2480Ant12.03 ReportNo.:EED32R81755101Page16of34 TestGraphs OBWNVNTBLE1M2402MHzAnt1 OBWNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page17of34 OBWNVNTBLE1M2480MHzAnt1 OBWNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page18of34 OBWNVNTBLE2M2440MHzAnt1 OBWNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page19of34 MaximumPowerSpectralDensityLevel ConditionModeFrequency (MHz) AntennaConductedPSD (dBm/3kHz) DutyFactor (dB) TotalPSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNTBLE1M2402Ant1-15.820-15.828Pass NVNTBLE1M2440Ant1-13.880-13.888Pass NVNTBLE1M2480Ant1-14.340-14.348Pass NVNTBLE2M2402Ant1-19.420-19.428Pass NVNTBLE2M2440Ant1-19.350-19.358Pass NVNTBLE2M2480Ant1-19.860-19.868Pass ReportNo.:EED32R81755101Page20of34 TestGraphs PSDNVNTBLE1M2402MHzAnt1 PSDNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page21of34 PSDNVNTBLE1M2480MHzAnt1 PSDNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page22of34 PSDNVNTBLE2M2440MHzAnt1 PSDNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page23of34 BandEdge ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE1M2402Ant1-55.62-20Pass NVNTBLE1M2480Ant1-57.46-20Pass NVNTBLE2M2402Ant1-39.08-20Pass NVNTBLE2M2480Ant1-56.62-20Pass ReportNo.:EED32R81755101Page24of34 TestGraphs BandEdgeNVNTBLE1M2402MHzAnt1Ref BandEdgeNVNTBLE1M2402MHzAnt1Emission

ReportNo.:EED32R81755101Page25of34 BandEdgeNVNTBLE1M2480MHzAnt1Ref BandEdgeNVNTBLE1M2480MHzAnt1Emission ReportNo.:EED32R81755101Page26of34 BandEdgeNVNTBLE2M2402MHzAnt1Ref BandEdgeNVNTBLE2M2402MHzAnt1Emission ReportNo.:EED32R81755101Page27of34 BandEdgeNVNTBLE2M2480MHzAnt1Ref BandEdgeNVNTBLE2M2480MHzAnt1Emission ReportNo.:EED32R81755101Page28of34 ConductedRFSpuriousEmission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE1M2402Ant1-40.67-20Pass NVNTBLE1M2440Ant1-38.39-20Pass NVNTBLE1M2480Ant1-37.35-20Pass NVNTBLE2M2402Ant1-44.02-20Pass NVNTBLE2M2440Ant1-38.79-20Pass NVNTBLE2M2480Ant1-41.17-20Pass ReportNo.:EED32R81755101Page29of34 TestGraphs Tx.SpuriousNVNTBLE1M2402MHzAnt1Ref Tx.SpuriousNVNTBLE1M2402MHzAnt1Emission ReportNo.:EED32R81755101Page30of34 Tx.SpuriousNVNTBLE1M2440MHzAnt1Ref Tx.SpuriousNVNTBLE1M2440MHzAnt1Emission ReportNo.:EED32R81755101Page31of34 Tx.SpuriousNVNTBLE1M2480MHzAnt1Ref Tx.SpuriousNVNTBLE1M2480MHzAnt1Emission ReportNo.:EED32R81755101Page32of34 Tx.SpuriousNVNTBLE2M2402MHzAnt1Ref Tx.SpuriousNVNTBLE2M2402MHzAnt1Emission ReportNo.:EED32R81755101Page33of34 Tx.SpuriousNVNTBLE2M2440MHzAnt1Ref Tx.SpuriousNVNTBLE2M2440MHzAnt1Emission ReportNo.:EED32R81755101Page34of34 Tx.SpuriousNVNTBLE2M2480MHzAnt1Ref Tx.SpuriousNVNTBLE2M2480MHzAnt1Emission ***EndofReport***

ReportNo.:EED32R81755101Page1of34 Appendix:BluetoothLE-R ReportNo.:EED32R81755101Page2of34 Contents DutyCycle...........................................................................................................................................................................................................3 MaximumPeakConductedOutputPower.........................................................................................................................................................7 -6dBBandwidth.................................................................................................................................................................................................11 OccupiedChannelBandwidth..........................................................................................................................................................................15 MaximumPowerSpectralDensityLevel.........................................................................................................................................................19 BandEdge.........................................................................................................................................................................................................23 ConductedRFSpuriousEmission...................................................................................................................................................................28 ReportNo.:EED32R81755101Page3of34 DutyCycle ConditionModeFrequency(MHz)AntennaDutyCycle(%)CorrectionFactor(dB)1/T(kHz) NVNTBLE1M2402Ant163.0422.54 NVNTBLE1M2440Ant163.761.952.51 NVNTBLE1M2480Ant163.761.952.51 NVNTBLE2M2402Ant134.164.664.68 NVNTBLE2M2440Ant134.164.664.68 NVNTBLE2M2480Ant134.164.664.68 ReportNo.:EED32R81755101Page4of34 TestGraphs DutyCycleNVNTBLE1M2402MHzAnt1 DutyCycleNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page5of34 DutyCycleNVNTBLE1M2480MHzAnt1 DutyCycleNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page6of34 DutyCycleNVNTBLE2M2440MHzAnt1 DutyCycleNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page7of34 MaximumPeakConductedOutputPower ConditionModeFrequency (MHz) AntennaConductedPower (dBm) DutyFactor (dB) TotalPower (dBm) Limit (dBm) Verdict NVNTBLE1M2402Ant11.8901.8930Pass NVNTBLE1M2440Ant13.3903.3930Pass NVNTBLE1M2480Ant13.2303.2330Pass NVNTBLE2M2402Ant13.4103.4130Pass NVNTBLE2M2440Ant13.4903.4930Pass NVNTBLE2M2480Ant14.704.730Pass ReportNo.:EED32R81755101Page8of34 TestGraphs PeakPowerNVNTBLE1M2402MHzAnt1 PeakPowerNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page9of34 PeakPowerNVNTBLE1M2480MHzAnt1 PeakPowerNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page10of34 PeakPowerNVNTBLE2M2440MHzAnt1 PeakPowerNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page11of34 -6dBBandwidth ConditionModeFrequency(MHz)Antenna-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict NVNTBLE1M2402Ant10.7030.5Pass NVNTBLE1M2440Ant10.7090.5Pass NVNTBLE1M2480Ant10.7060.5Pass NVNTBLE2M2402Ant11.2440.5Pass NVNTBLE2M2440Ant11.2440.5Pass NVNTBLE2M2480Ant11.2430.5Pass ReportNo.:EED32R81755101Page12of34 TestGraphs -6dBBandwidthNVNTBLE1M2402MHzAnt1 -6dBBandwidthNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page13of34 -6dBBandwidthNVNTBLE1M2480MHzAnt1 -6dBBandwidthNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page14of34 -6dBBandwidthNVNTBLE2M2440MHzAnt1 -6dBBandwidthNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page15of34 OccupiedChannelBandwidth ConditionModeFrequency(MHz)Antenna99%OBW(MHz) NVNTBLE1M2402Ant11.025 NVNTBLE1M2440Ant11.025 NVNTBLE1M2480Ant11.024 NVNTBLE2M2402Ant12.023 NVNTBLE2M2440Ant12.024 NVNTBLE2M2480Ant12.023 ReportNo.:EED32R81755101Page16of34 TestGraphs OBWNVNTBLE1M2402MHzAnt1 OBWNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page17of34 OBWNVNTBLE1M2480MHzAnt1 OBWNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page18of34 OBWNVNTBLE2M2440MHzAnt1 OBWNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page19of34 MaximumPowerSpectralDensityLevel ConditionModeFrequency (MHz) AntennaConductedPSD (dBm/3kHz) DutyFactor (dB) TotalPSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNTBLE1M2402Ant1-14.240-14.248Pass NVNTBLE1M2440Ant1-12.180-12.188Pass NVNTBLE1M2480Ant1-12.710-12.718Pass NVNTBLE2M2402Ant1-13.880-13.888Pass NVNTBLE2M2440Ant1-13.750-13.758Pass NVNTBLE2M2480Ant1-14.290-14.298Pass ReportNo.:EED32R81755101Page20of34 TestGraphs PSDNVNTBLE1M2402MHzAnt1 PSDNVNTBLE1M2440MHzAnt1 ReportNo.:EED32R81755101Page21of34 PSDNVNTBLE1M2480MHzAnt1 PSDNVNTBLE2M2402MHzAnt1 ReportNo.:EED32R81755101Page22of34 PSDNVNTBLE2M2440MHzAnt1 PSDNVNTBLE2M2480MHzAnt1 ReportNo.:EED32R81755101Page23of34 BandEdge ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE1M2402Ant1-53.96-20Pass NVNTBLE1M2480Ant1-56.63-20Pass NVNTBLE2M2402Ant1-39.17-20Pass NVNTBLE2M2480Ant1-57.06-20Pass ReportNo.:EED32R81755101Page24of34 TestGraphs BandEdgeNVNTBLE1M2402MHzAnt1Ref BandEdgeNVNTBLE1M2402MHzAnt1Emission

ReportNo.:EED32R81755101Page25of34 BandEdgeNVNTBLE1M2480MHzAnt1Ref BandEdgeNVNTBLE1M2480MHzAnt1Emission ReportNo.:EED32R81755101Page26of34 BandEdgeNVNTBLE2M2402MHzAnt1Ref BandEdgeNVNTBLE2M2402MHzAnt1Emission ReportNo.:EED32R81755101Page27of34 BandEdgeNVNTBLE2M2480MHzAnt1Ref BandEdgeNVNTBLE2M2480MHzAnt1Emission ReportNo.:EED32R81755101Page28of34 ConductedRFSpuriousEmission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE1M2402Ant1-40.13-20Pass NVNTBLE1M2440Ant1-39.04-20Pass NVNTBLE1M2480Ant1-38.63-20Pass NVNTBLE2M2402Ant1-42.11-20Pass NVNTBLE2M2440Ant1-40.99-20Pass NVNTBLE2M2480Ant1-41.03-20Pass ReportNo.:EED32R81755101Page29of34 TestGraphs Tx.SpuriousNVNTBLE1M2402MHzAnt1Ref Tx.SpuriousNVNTBLE1M2402MHzAnt1Emission ReportNo.:EED32R81755101Page30of34 Tx.SpuriousNVNTBLE1M2440MHzAnt1Ref Tx.SpuriousNVNTBLE1M2440MHzAnt1Emission ReportNo.:EED32R81755101Page31of34 Tx.SpuriousNVNTBLE1M2480MHzAnt1Ref Tx.SpuriousNVNTBLE1M2480MHzAnt1Emission ReportNo.:EED32R81755101Page32of34 Tx.SpuriousNVNTBLE2M2402MHzAnt1Ref Tx.SpuriousNVNTBLE2M2402MHzAnt1Emission ReportNo.:EED32R81755101Page33of34 Tx.SpuriousNVNTBLE2M2440MHzAnt1Ref Tx.SpuriousNVNTBLE2M2440MHzAnt1Emission ReportNo.:EED32R81755101Page34of34 Tx.SpuriousNVNTBLE2M2480MHzAnt1Ref Tx.SpuriousNVNTBLE2M2480MHzAnt1Emission ***EndofReport***

ReportNo.:EED32R81755101Page 1 of 49 TESTREPORT Product:WatchBuds Trademark:imoo Model/Typereference:E2502AO SerialNumber:N/A ReportNumber:EED32R81755101 FCCID:2BSUAX02E DateofIssue:Dec.12,2025 TestStandards:47CFRPart15SubpartC Testresult:PASS Preparedfor: DONGGUANIMOOTECHNOLOGYLIMITED Room1102,Building1,No.28,DongmenMiddleRoad,Chang'anTown, DongguanCity,GuangdongProvince，523850，China Preparedby: CentreTestingInternationalGroupCo.,Ltd. HongweiIndustrialPark,Zone70,Bao’anDistrict, Shenzhen,Guangdong,China TEL:+86-755-33683668 FAX:+86-755-33683385 Compiledby:Reviewedby: LucasLuKevenTan Approvedby:Date:Dec.12,2025 AaronMa CheckNo.:2527180925 ReportNo.:EED32R81755101Page 2 of 49 1Content 1CONTENT............................................................................................................................................................................2 2TESTSUMMARY...............................................................................................................................................................3 3GENERALINFORMATION...............................................................................................................................................4 3.1CLIENTINFORMATION....................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT.................................................................................................................................4 3.3TESTCONFIGURATION..................................................................................................................................................5 3.4TESTENVIRONMENT.....................................................................................................................................................6 3.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................6 3.6TESTLOCATION.............................................................................................................................................................6 3.7MEASUREMENTUNCERTAINTY(95%CONFIDENCELEVELS,K=2).............................................................................7 4EQUIPMENTLIST..............................................................................................................................................................8 5TESTRESULTSANDMEASUREMENTDATA.........................................................................................................11 5.1ANTENNAREQUIREMENT............................................................................................................................................11 5.2CONDUCTEDEMISSIONS.............................................................................................................................................12 5.3MAXIMUMCONDUCTEDOUTPUTPOWER..................................................................................................................16 5.4DTSBANDWIDTH........................................................................................................................................................17 5.5MAXIMUMPOWERSPECTRALDENSITY.....................................................................................................................18 5.6BANDEDGEMEASUREMENTSANDCONDUCTEDSPURIOUSEMISSION...................................................................19 5.7RADIATEDSPURIOUSEMISSION&RESTRICTEDBANDS...........................................................................................20 6APPENDIXA.....................................................................................................................................................................37 7PHOTOGRAPHSOFTESTSETUP..............................................................................................................................38 8PHOTOGRAPHSOFEUTCONSTRUCTIONALDETAILS.....................................................................................40 ReportNo.:EED32R81755101Page 3 of 49 2TestSummary TestItemTestRequirementResult AntennaRequirement 47CFRPart15SubpartCSection 15.203/15.247(c) PASS ACPowerLineConducted Emission 47CFRPart15SubpartCSection 15.207 PASS DTSBandwidth 47CFRPart15SubpartCSection 15.247(a)(2) PASS MaximumConductedOutput Power 47CFRPart15SubpartCSection 15.247(b)(3) PASS MaximumPowerSpectral Density 47CFRPart15SubpartCSection15.247(e)PASS BandEdgeMeasurements 47CFRPart15SubpartCSection 15.247(d) PASS ConductedSpuriousEmissions 47CFRPart15SubpartCSection 15.247(d) PASS RadiatedSpuriousEmission& Restrictedbands 47CFRPart15SubpartCSection 15.205/15.209 PASS ReportNo.:EED32R81755101Page 4 of 49 3GeneralInformation 3.1ClientInformation Applicant:DONGGUANIMOOTECHNOLOGYLIMITED AddressofApplicant:Room1102,Building1,No.28,DongmenMiddleRoad,Chang'anTown, DongguanCity,GuangdongProvince，523850，China Manufacturer:DONGGUANIMOOTECHNOLOGYLIMITED AddressofManufacturer:Room1102,Building1,No.28,DongmenMiddleRoad,Chang'anTown, DongguanCity,GuangdongProvince，523850，China Factory:DongguanZackElectronicTechnologyCo.,Ltd. AddressofFactory: Room601，Building9,No.11,HumenSection,Tai'anRoad,Humen Town,DongguanCity,GuangdongProvinceChina 3.2GeneralDescriptionofEUT ProductName: WatchBuds ModelNo.: E2502AO TestModelNo.: E2502AO Trademark: imoo ProductType: MobilePortableFixLocation OperationFrequency: 2402MHz~2480MHz ModulationType: GFSK TransferRate:1Mbps,2Mbps NumberofChannel: 40 AntennaType: FPCAntenna AntennaGain: -3.7dBi PowerSupply: Adapter:DC5V Battery:3.87V TestVoltage: 3.87V SampleReceivedDate:Sep.18,2025 SampletestedDate:Sep.18,2025toOct.14,2025 ReportNo.:EED32R81755101Page 5 of 49 O…

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