2BT3H-SDC-LE-A3Module

CircuitPrincipleandOperationalDescriptionforBluetoothModulebasedonBluetrum XTaC07E5A 1.0Introduction Thisdocumentdescribesthecircuitprinciplesandoperationalcharacteristicsofthe Bluetoothmodule.ThecorecomponentofthismoduleistheBluetrumXTaC07E5A system-on-chip(SoC),whichintegratesRFtransceiver,basebandprocessor,memory, andapplicationperipheralsforBluetoothaudioapplications. 2.0FunctionalBlockDiagram Ahigh-levelblockdiagramofthemoduleisprovided,pleaseseetheBlockDiagram 3.0CircuitSchematicOverview Thedetailedcircuitschematicaccompaniesthisdescription.Keysectionsare summarizedbelow: 3.1PowerSupply: *ExternalDCpowerinputat3.3VissuppliedtothemoduleviapinVBAT. *On-boarddecouplingcapacitors1uFfilternoiseonpowerrailsneartheXTaC07E5Aand otherICs. 3.2BluetrumXTaC07E5ASoC: *Core:TheintegratedRISC-VCPUhandlesprotocolstackandapplicationfunctions. *Memory:TheSoCcontainsembeddedRAM/ROM *Clock:Anexternal24.000MHzcrystaloscillatorprovidesthereferenceclockforthe systemandRFcircuitry. *RFInterface:ThedifferentialRFoutputpinsoftheXTaC07E5Aconnectdirectlytothe matchingnetwork. 3.3RFFront-End&Antenna: *MatchingNetwork:APi-typeorsimilarmatchingnetwork([C710pF],[C5NC],[C6NC]) matchesthechip'sRFoutputimpedance(typicallydifferential)tothecharacteristic impedanceoftheantennafeedline(typically50Ωsingle-ended).Thisnetworkincludesa BALUNBalancedfunction. *Antenna:ThemoduleemploysaPCBtraceantenna. 4.0OperationalDescription 4.1GeneralFunction: TheSDC-LE-A3LisaBluetooth5.4BLEmodule.Itsprimaryfunctionisto transmit/receivedataviaUART. 4.2ModesofOperation: *Transmit(TX)Mode:Whendataisinitiated: 1.DataisprocessedbytheXTaC07E5A'sinternalprocessorandbaseband. 2.Thebasebandsignalmodulatesthe2.4GHzcarrierusingGFSKforBLEasper Bluetoothspecifications. 3.ThemodulatedRFsignalisamplifiedbytheinternalPAandoutputdifferentiallyfrom theXTaC07E5A'sRFpins. 4.TheexternalBALUNandmatchingnetworkconvertthedifferentialsignalto single-endedandprovideimpedancematchingtotheantenna. 5.TheantennaradiatestheRFsignalwithinthe2.4GHzISMband(2402–2480MHz). *Receive(RX)Mode: 1.RFsignalsinthe2.4GHzbandarereceivedbytheantenna. 2.Thesignalpassesthroughthematchingnetwork(providingreciprocity)tothe XTaC07E5A'sRFinput. 3.TheinternalLNAandreceiverdown-convert,demodulate,anddecodethesignal. 4.Theretrieveddigitalaudio/dataisthenprocessedfurtheroutputviaUART. *LowPower/SleepMode:TheXTaC07E5Aemploysvariouslow-powerstatescontrolled byitsinternalfirmwaretoconserveenergywhennotactivelytransmittingorreceiving. 4.3RFParameters: *FrequencyRange:2402–2480MHz(BluetoothISMBand). *NumberofChannels:40channelsforBLE1MHz.AdaptiveFrequencyHopping(AFH) isused. *ModulationType:GFSK. *OutputPower:Themaximumconductedoutputpowerfromthemoduleantennaportis typically<9dBm.PowercontrolisimplementedasperBluetoothrequirements. *AntennaGain:Theantennagainusedis1.39dBi.Thisisaintegralantenna. *PowerSource:Poweredby3.3VDC. FCCStatement Thisdevicecomplieswithpart15oftheFCCrules.Operationissubjecttothefollowingtwoconditions:(1) thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesiredoperation. Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser’ sauthoritytooperatetheequipment. NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursua nttopart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinte rferenceinaresidentialinstallation.Thisequipmentgeneratesusesandcanradiateradiofrequencyenergya nd,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradiocom munications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthis equipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturn ingtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthe followingmeasures: ‐ Reorientorrelocatethereceivingantenna. ‐Increasetheseparationbetweentheequipmentandreceiver. ‐ Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected. ‐Consultthedealeroranexperiencedradio/TVtechnicianforhelpimportantannouncement ImportantNote: RadiationExposureStatement ThisequipmentcomplieswithFCCradiationexposurelimitssetforthforanuncontrolledenvironment.This equipmentshouldbeinstalledandoperatedwithminimumdistance20cmbetweentheradiatorandyour body. Thistransmittermustnotbeco-locatedoroperatinginconjunctionwithanyotherantennaortransmitter. CountryCodeselectionfeaturetobedisabledforproductsmarketedtotheUS/Canada. ThisdeviceisintendedonlyforOEMintegratorsunderthefollowingconditions: 1.Theantennamustbeinstalledsuchthat20cmismaintainedbetweentheantennaandusers,and 2.Thetransmittermodulemaynotbeco-locatedwithanyothertransmitterorantenna, 3.ForallproductsmarketinUS,OEMhastolimittheoperationchannelsinCH1toCH11for2.4Gband bysuppliedfirmwareprogrammingtool.OEMshallnotsupplyanytoolorinfototheend-user regardingtoRegulatoryDomainchange.(ifmodularonlytestChannel1-11) Aslongasthethreeconditionsabovearemet,furthertransmittertestingwillnotberequired.However,the OEMintegratorisstillresponsiblefortestingtheirend-productforanyadditionalcompliancerequirements requiredwiththismoduleinstalled. ImportantNote: Intheeventthattheseconditionscannotbemet(forexamplecertainlaptopconfigurationsorco-location withanothertransmitter),thentheFCCauthorizationisnolongerconsideredvalidandtheFCCIDcannotbe usedonthefinalproduct.Inthesecircumstances,theOEMintegratorwillberesponsibleforre-evaluatingthe endproduct(includingthetransmitter)andobtainingaseparateFCCauthorization. EndProductLabeling Thefinalendproductmustbelabeledinavisibleareawiththefollowing" ContainsFCCID:2BT3H-SDC-LE-A3" ManualInformationtotheEndUser TheOEMintegratorhastobeawarenottoprovideinformationtotheenduserregardinghowtoinstallor removethisRFmoduleintheuser’smanualoftheendproductwhichintegratesthismodule. Theendusermanualshallincludeallrequiredregulatoryinformation/warningassho…

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DNT2511280824R13810-P01Page: 1 of 3 PHOTOGRAPHSOFEUT FCCID:2BT3H-SDC-LE-A3 ExternalPhotos ExternalPhotos DNT2511280824R13810-P01Page: 2 of 3 ExternalPhotos ExternalPhotos DNT2511280824R13810-P01Page: 3 of 3 ExternalPhotos ExternalPhotos --END--

FCCID:2BT3H-SDC-LE-A3

DNT2511280824R13810-P01Page: 1 of 2 PHOTOGRAPHSOFEUT FCCID:2BT3H-SDC-LE-A3 nternalPhotos InternalPhotos DNT2511280824R13810-P01Page: 2 of 2 InternalPhotos --END--

DongguanDNTestingCo.,Ltd. Add:No.1,WestFourthStreet,XingfaSouthRoad,WushaCommunity,Chang'anTown,DongguanCity,GuangdongP.R.China Web:www.dn-testing.comTel:+86-769-88087383E-mail:[email protected] RFExposureEvaluationReport ApplicationNo.: DNT2511280824R13810-16008 Applicant: QuanzhouSTAYTRUEElectronicTechnologyCo.,Ltd AddressofApplicant: Unit1A-2,1stFloor,Building1,FengshuLogisticsPark,No.920,Binhu SouthRoad,TaiwanInvestmentZone,Quanzhou,FujianProvince EUTDescription: Module ModelNo.: SDC-LE-A3 FCCID: 2BT3H-SDC-LE-A3 Powersupply: DC3.3V TradeMark: STAYTRUE Standards: 47CFRPart2.1091 FCCKDB447498D01v06 DateofReceipt: 2025/11/28 DateofTest: 2025/11/28to2025/12/09 DateofIssue: 2025/12/29 TestResult: PASS PreparedBy:(TestingEngineer) ReviewedBy:(ProjectEngineer) ApprovedBy:(Manager) Note:Ifthereisanyobjectiontotheresultsinthisreport,pleasesubmitawritteninquirytothecompanywithin15daysfromthedateof receivingthereport.Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,andisissuedbythecompanyinaccordance withtherequirementsofthe"ConditionsofIssuanceofTestReports"printedintheattachedpage.Unlessotherwisestated,theresults presentedinthisreportonlyapplytothesamplestestedthistime.Partialreproductionofthisreportisnotallowedunlessapprovedbythe companyinwriting. ReportNo.:DNT2511280824R13810-16008Date：December29,2025Page： 2 / 6 DongguanDNTestingCo.,Ltd. Add:No.1,WestFourthStreet,XingfaSouthRoad,WushaCommunity,Chang'anTown,DongguanCity,GuangdongP.R.China Web:www.dn-testing.comTel:+86-769-88087383E-mail:[email protected] ReportReviseRecord ReportVersionReviseTimeIssuedDateValidVersionNotes V2.0/ Dec.29,2025 ValidOriginalReport ReportNo.:DNT2511280824R13810-16008Date：December29,2025Page： 3 / 6 DongguanDNTestingCo.,Ltd. Add:No.1,WestFourthStreet,XingfaSouthRoad,WushaCommunity,Chang'anTown,DongguanCity,GuangdongP.R.China Web:www.dn-testing.comTel:+86-769-88087383E-mail:[email protected] Contents 1GENERALINFORMATION.......................................................................................................................4 1.1TESTLOCATION..................................................................................................................................4 1.2GENERALDESCRIPTIONOFEUT.........................................................................................................4 2RFEXPOSUREEVALUATION.................................................................................................................5 2.1RFEXPOSURECOMPLIANCEREQUIREMENT........................................................................................5 2.1.1Limits.............................................................................................................................................5 2.1.2TestProcedure.............................................................................................................................6 2.1.3EUTRFExposureEvaluation.......................................................................................................6 ReportNo.:DNT2511280824R13810-16008Date：December29,2025Page： 4 / 6 DongguanDNTestingCo.,Ltd. Add:No.1,WestFourthStreet,XingfaSouthRoad,WushaCommunity,Chang'anTown,DongguanCity,GuangdongP.R.China Web:www.dn-testing.comTel:+86-769-88087383E-mail:[email protected] 1GeneralInformation 1.1TestLocation Company:DongguanDNTestingCo.,Ltd Address: No.1,WestFourthStreet,SouthXinfaRoad,WushaLiwu,Chang＇anTown, DongguanCity,GuangdongP.R.China Testengineer:WayneLin 1.2GeneralDescriptionofEUT Manufacturer:QuanzhouSTAYTRUEElectronicTechnologyCo.,Ltd AddressofManufacturer: Unit1A-2,1stFloor,Building1,FengshuLogisticsPark,No.920,BinhuSouth Road,TaiwanInvestmentZone,Quanzhou,FujianProvince EUTDescription::Module ModelNo.:SDC-LE-A3 AdditionalModel(s):/ PowerSupply:DC3.3V TradeMark:STAYTRUE HardwareVersion:V1.0 SoftwareVersion:V1.0 ChipType: XTaC07E5A Serialnumber PR2511280824R13810 OperationFrequency:2402MHzto2480MHz SampleType:PortableDevice,Module,MobileDevice AntennaType:External,Integrated AntennaGain: Providedbyapplicant 1.39dBi Remark: *Sincetheabovedataand/orinformationisprovidedbytheapplicantrelevantresultsorconclusionsof thisreportareonlymadeforthesedataand/orinformation,DNTisnotresponsiblefortheauthenticity, integrityandresultsofthedataandinformationand/orthevalidityoftheconclusion. ReportNo.:DNT2511280824R13810-16008Date：December29,2025Page： 5 / 6 DongguanDNTestingCo.,Ltd. Add:No.1,WestFourthStreet,XingfaSouthRoad,WushaCommunity,Chang'anTown,DongguanCity,GuangdongP.R.China Web:www.dn-testing.comTel:+86-769-88087383E-mail:[email protected] 2RFExposureEvaluation 2.1RFExposureComplianceRequirement 2.1.1Limits Frequencyrange (MHz) Electricfieldstrength (V/m) Magneticfieldstrength (A/m) Powerdensity (mW/cm2) Averagingtime (minutes) (A)LimitsforOccupational/ControlledExposures 0.3-3.06141.63*(100)6 3.0-301842/f4.89/f*(900/f2)6 30-30061.40.1631.06 300-1500//f/3006 1500-100,000//56 (B)LimitsforGeneralPopulation/UncontrolledExposure 0.3-1.346141.63*(100)30 1.34-30824/f2.19/f*(180/f2)30 30-30027.50.0730.230 300-1500//f/150030 1500-100,000//1.030 F=frequencyinMHz *=Plane-waveequivalentpowerdensity RFexposurecompliancewillneedtobedeterminedwithrespectto1.1307(c)and(d)oftheFCCrules.The emissionsshouldbewithinthelimitsat300kHzinTable1of1.1310(usethe300kHzlimitsfor 150kHz:614V/m,1.63A/m). FriisFormula Friistransmissionformula:Pd=(Pout*G)/(4*Pi*R2) Where Pd=powerdensityinmW/cm2 Pout=outputpowertoantennainmW G=gainofantennainlinearscale Pi=3.1416 R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm2.Ifweknowthemaximumgainoftheantennaandthetotalpowerinputtothe antenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. ReportNo.:DNT2511280824R13810-16008Date：December29,2025Page： 6 / 6 DongguanDNTestingCo.,Ltd. Add:No.1,WestFourthStreet,XingfaSouthRoad,WushaCommunity,Chang'anTown,DongguanCity,GuangdongP.R.China Web:www.dn-testing.comTel:+86-769-88087383E-mail:service@…

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ANTENNASPECIFICATION ITEMANTSPEC ModelName2.4GANT MAX.Gain1.39dBi Testmethod- AzimuthBeamPatternOmni-directional Impedance50Ohm AntennaLength14.5mm*5.5mm ManufactureQuanzhouSidechuElectronicTechnologyCo.,Ltd Address: Unit1-2,1stFloor,Building1,FengshuLogisticsPark,No.920BinhanSouth Road,TaiwanBusinessInvestmentZone,Quanzhou,FujianProvince AntennaLength

Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] FCC Test Report Application No.: DNT2511280824R13810-16009 Applicant: Quanzhou STAYTRUE Electronic Technology Co., Ltd Address of Applicant: Unit 1A-2, 1st Floor, Building 1, Fengshu Logistics Park, No. 920, Binhu South Road, Taiwan Investment Zone, Quanzhou, Fujian Province EUT Description: Module Model No.: SDC-LE-A3 FCC ID: 2BT3H-SDC-LE-A3 Power Supply: DC 3.3V Trade Mark: STAYTRUE Standards: 47 CFR Part 2, Subpart J 47 CFR Part 15, Subpart C ANSI C63.10: 2020 Date of Receipt: 2025/11/28 Date of Test: 2025/11/28 to 2025/12/09 Date of Issue: 2025/12/29 Test Result: PASS Prepared By:(Testing Engineer) Reviewed By:(Project Engineer) Approved By:(Manager) Note: If there is any objection to the results in this report, please submit a written inquiry to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp, and is issued by the company in accordance with the requirements of the "Conditions of Issuance of Test Reports" printed in the attached page. Unless otherwise stated, the results presented in this report only apply to the samples tested this time. Partial reproduction of this report is not allowed unless approved by the company in writing. Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 2 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] Report Revise Record Report VersionRevise TimeIssued DateValid VersionNotes V2.0/ Dec.29, 2025 ValidOriginal Report Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 3 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] 1 Test Summary Test ItemTest RequirementTest MethodTest ResultResult Antenna Requirement 15.203/247(b)--Clause 3.1PASS Duty Cycle----Clause 3.2PASS DTS (6 dB) Bandwidth15.247 (a)(2)ANSI C63.10: 2020Clause 3.3PASS Conducted Output Power15.247 (b)(3)ANSI C63.10: 2020Clause 3.4PASS Power Spectral Density15.247 (e)ANSI C63.10: 2020Clause 3.5PASS Band-edge for RF Conducted Emissions 15.247(d)ANSI C63.10: 2020Clause 3.6PASS RF Conducted Spurious Emissions 15.247(d)ANSI C63.10: 2020Clause 3.7PASS Radiated Spurious Emissions15.247(d);15.205/15.209ANSI C63.10: 2020Clause 3.8PASS Restricted bands around fundamental frequency (Radiated Emission) 15.247(d);15.205/15.209ANSI C63.10: 2020Clause 3.9PASS AC Power Line Conducted Emission 15.207ANSI C63.10: 2020Clause 3.10N/A Note: 1. “N/A” denotes test is not applicable in this test report. Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 4 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] Contents 1 Test Summary..................................................................................................................................................................3 2 General Information..........................................................................................................................................................5 2.1 Test Location..........................................................................................................................................................5 2.2 General Description of EUT...................................................................................................................................5 2.3 Test Environment...................................................................................................................................................6 2.4 Channel List........................................................................................................................................................... 6 2.5 Power Setting of Test Software............................................................................................................................. 7 2.6 Assistant equipment used for test..........................................................................................................................7 2.7 Description of Support Units.................................................................................................................................. 7 2.8 Test Facility............................................................................................................................................................7 2.9 Equipment List....................................................................................................................................................... 8 2.10 Measurement Uncertainty (95% confidence levels, k=2).................................................................................. 10 3 Test results and Measurement Data..............................................................................................................................11 3.1 Antenna Requirement..........................................................................................................................................11 3.2 Duty Cycle............................................................................................................................................................12 3.3 DTS (6 dB) Bandwidth......................................................................................................................................... 13 3.4 Co…

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Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 43 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_2M_Ant1_2402 BLE_2M_Ant1_2440 BLE_2M_Ant1_2480 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 44 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] Appendix E: Band edge measurements Test Result TestModeAntennaChNameFreq(MHz)RefLevel[dBm]Result[dBm]Limit[dBm]Verdict BLE_1MAnt1 Low24022.52-47.91≤-17.48PASS High24801.62-47.14≤-18.38PASS BLE_2MAnt1 Low24020.13-42.69≤-19.87PASS High24801.51-45.93≤-18.49PASS Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 45 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] Test Graphs BLE_1M_Ant1_Low_2402 BLE_1M_Ant1_High_2480 BLE_2M_Ant1_Low_2402 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 46 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_2M_Ant1_High_2480 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 47 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] Appendix F: Conducted Spurious Emission Test Result TestModeAntennaFreq(MHz) FreqRange [MHz] RefLevel [dBm] Result[dBm]Limit[dBm]Verdict BLE_1MAnt1 2402 Reference2.422.42---PASS 30~10002.42-59.36≤-17.58PASS 1000~265002.42-23.79≤-17.58PASS 2440 Reference0.780.78---PASS 30~10000.78-58.71≤-19.22PASS 1000~265000.78-24.81≤-19.22PASS 2480 Reference0.780.78---PASS 30~10000.78-59.95≤-19.22PASS 1000~265000.78-24.74≤-19.22PASS BLE_2MAnt1 2402 Reference0.720.72---PASS 30~10000.72-58.2≤-19.28PASS 1000~265000.72-22.76≤-19.28PASS 2440 Reference0.530.53---PASS 30~10000.53-59.22≤-19.47PASS 1000~265000.53-24.87≤-19.47PASS 2480 Reference-2.87-2.87---PASS 30~1000-2.87-58.96≤-22.87PASS 1000~26500-2.87-24.17≤-22.87PASS Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 48 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] Test Graphs BLE_1M_Ant1_2402_0~Reference BLE_1M_Ant1_2402_30~1000 BLE_1M_Ant1_2402_1000~26500 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 49 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_1M_Ant1_2440_0~Reference BLE_1M_Ant1_2440_30~1000 BLE_1M_Ant1_2440_1000~26500 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 50 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_1M_Ant1_2480_0~Reference BLE_1M_Ant1_2480_30~1000 BLE_1M_Ant1_2480_1000~26500 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 51 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_2M_Ant1_2402_0~Reference BLE_2M_Ant1_2402_30~1000 BLE_2M_Ant1_2402_1000~26500 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 52 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_2M_Ant1_2440_0~Reference BLE_2M_Ant1_2440_30~1000 BLE_2M_Ant1_2440_1000~26500 Report No.: DNT2511280824R13810-16009Date：December 29, 2025Page： 53 / 53 Dongguan DN Testing Co., Ltd. Add: No. 1, West Fourth Street, Xingfa South Road, Wusha Community, Chang 'an Town, Dongguan City, Guangdong P.R.China Web: www.dn-testing.comTel:+86-769-88087383E-mail: [email protected] BLE_2M_Ant1_2480_0~Reference BLE_2M_Ant1_2480_30~1000 BLE_2M_Ant1_2480_1000~26500 The End Report

DNT2511280824R13810-P01Page: 1 of 2 PHOTOGRAPHSOFEUT FCCID:2BT3H-SDC-LE-A3 AntennaTerminalTestView RadiatedEmissionTestView|(Below1G) DNT2511280824R13810-P01Page: 2 of 2 RadiatedEmissionTestView|(Above1G) --END--