YMX-ZENBDM11ABluetooth Module

ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 1 ZEN-BDM11ASpecification DualModeBluetoothModule 雙模藍牙模塊 1.Overview ZEN-BDM11ABluetoothmoduleisbasedonAC6963Achipwhichcomplywith Bluetooth5.1specification.ThismodulesupportBluetoothBLE/SPPdata transmission,voicecall,Bluetoothmusicplay,supportUSBDisk/SPIFLASHaudio decodingandsomeotherfunctions.Itisconvenienttousepinstoconnectthemodule, whichcangreatlyreducethedifficultyofperipheralcircuitdesignandreducethecost forcustomers.Thismoduleisanexcellentsolutionforspeakersystem,smarthome andotherapplications. Features ： 1 ） ComplywithBluetooth5.1specification(BR/EDR/LE) 2 ） SupportclassicBluetoothprotocol(A2DP/AVRCP/AVDPT/AVCTP/HFP/SPP/ SDP/L2CAP/HID...) 3 ） SupportBluetoothLEdatatransmission(LE1M/2MPHY) 4 ） 16BitstereoaudioDACoutput 5）16BitstereoaudioADC，BuiltinMICamplifier 6 ） AUXINinterface 7 ） HighspeedUARTinterface 8 ） USB2.0FullspeedOTGController SupportUSBDisk/USBAudio 9 ） On-board2.4GPCBantenna 10 ） BLEsupportmulti-masterandmulti-slaveapplications 11 ） SupportexternalSPIFlashasmusicmemory. Application ： 1)BluetoothSpeaker 2)Smart-homedevices ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 2 2.Blockdiagram 3.ProductSelection ModelNotesPhoto ZEN-BDM11Generic ZEN-BDM11AShield Note:Thescreen-printingmodelofPCBboardisZEN-BDM11,andthesuffix-A indicatesshieldingcovermounted.Theshieldcanprintlaserlabelsorpastepaper labelsaccordingtocustomerrequirements. ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 3 4.ModuleSizeandPinConfiguration （Note：Theheightis2.8mm,includingthethicknessofshieldingcover） PIN NO. NAMEI/O Type FunctionOtherFunction 1GNDPGround 2ANTPTestRFANT 3GNDPGround 4PB1I/OGPIO (pullup) LongPressReset； SPI1DOA：SPI1DataOut(A); ADC5：ADCInputChannel5; TMR2：Timer2ClockInput; UART0RXB：Uart0DataIn(B); 5DPI/O USBPositive Data SPI2DOB：SPI2DataOut(B); IIC_SDA_A：IICSDA(A); ADC14：ADCInputChannel14; UART1RXD：Uart1DataIn(D); 6DMI/O USBNegative Data AMUX2R：AnalogChannel2Right; SPI2DOA：SPI2DataOut(A); ADC9：ADCInputChannel9; UART2RXC：Uart2DataIn(C); 7PB4I/OGPIO SPI0_DAT2A(2)：SPI0Data2Out_A(2); ADC7：ADCInputChannel7; CLKOUT1 UART2TXC：Uart2DataOut(C); ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 4 UART2RXC：Uart2DataIn(C); 8PB6I/OGPIO AMUX1L：AnalogChannel1Left; SPI2CLKA：SPI2DataOut(A); IIC_SCL_C：IICSCL(C); ADC8：ADCInputChannel8; TMR3：Timer3ClockInput; UART1TXA：Uart1DataOut(A); 9PB7I/OGPIO AMUX1R：AnalogChannel1Right; SPI2DOA：SPI2DataOut(A); IIC_SDA_C：IICDAT(C); ADC9：ADCInputChannel9; PWM5：Timer5PWMOutput； UART1RXA：Uart1DataIn(A); 10GNDPGround 11MIC_B IAS I/O MicrophoneBias Output PA2; CAP3：Timer3Capture; 12MICI/O MICInputChannel PA1; ADC1：ADCInputChannel1; PWM4：Timer4PWMOutput； UART1RXC：Uart0DataIn(C); 13AGNDP Ground 14DACLO DACLeftChannel 15DACLI/O DACRightChannel 16NC 17LDO_I N P BatteryChargerIn PB5I/OGPIO (HighVoltage Resistance) SPI2DIA：SPI2DataInput(A)； PWM3：Timer3PWMOutput； CAP1：Timer1Capture; UART0TXC：Uart0DataOut(C)； UART0RXC：Uart0DataIn(C); 18VBATP LDOPower 19VDDIOP IOPower3.3v 20GNDPGround Note:IOmultiplexingfunctionsarenotallmarked.Iftherearespecialapplications,pleasecontact first. ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 5 5.Typicalapplicationcircuits 6.Modulehardwarespecifications 6.1PMUCharacteristics SymbolParameterMinTypMaxUnitTestConditions VBATVoltageInput2.23.75.5V LDOINChargeVoltage4.55.5V VDDIOVoltageoutput--3.3--VVBAT=4.2V,100mA I VDDIO Loadingcurrent----150mAVBAT=5V 6.2IOInput/OutElectricalLogicalCharacteristics IOInputCharacteristics SymbolParameterMinTypMaxUnitTestConditions V IL Low-Level InputVoltage -0.3-- 0.3* VDDIO VVDDIO=3.3V V IH High-Level InputVoltage 0.7* VDDIO 3.3--VVDDIO=3.3V IOoutputcharacteristics V OL Low-Level OutputVoltage ----0.33VVDDIO=3.3V V OH High-Level OutputVoltage 2.7----VVDDIO=3.3V 6.3InternalResistorCharacteristics Port General Output High Drive Internal Pull-Up Internal Pull-Dow Comment ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 6 ResistornResistor PA1,PA2 PA6,PB1 PB4,PB6,P B7 8mA24mA10K10K 1.PB1defaultpullup 2.USBDM&USBDP defaultpulldown 3.PB0,PB2,PB5can pull-upresistanceto5V 4.internalpull-up/pull-down resistance|accuracy± 20% PB58mA--10K10K USBDP4mA--1.5K15K UDBDM4mA--180K15K 6.4DACCharacteristics ParameterMinTypMaxUnitTestConditions FrequencyResponse20--20KHz 1KHz/0dB10KohmLoading WithA-WeightedFilter THD+N---75--dB S/N--95--dB Crosstalk---90--dB OutputSwing1Vrms DynamicRange90dB 1KHz/-60dB10KohmLoading WithA-WeightedFilter DACOutputPower11mW32-ohmLoading 6.5ADCCharacteristics ParameterMinTypMaxUnitTestConditions DynamicRange80dB 1KHz/-60dB10KohmLoading WithA-WeightedFilter S/N9091dB 1KHz/-60dB10KohmLoading WithA-WeightedFilter THD+N-70dB Crosstalk-90dB 6.6BTCharacteristics 6.6.1Transmitter BasicDataRate ParameterMinTypMaxUnitTestConditions RFTransmitPower46dBm 25 °C ,PowerSupply Voltage=5V2441MHz RFPowerControlRange20dB 20dBBandwidth950KHz AdjacentChannel TransmitPower +2MHz-40dBm -2MHz-38dBm +3MHz-44dBm -3MHz-35dBm EnhancedDataRate ParameterMin Typ 。。 MaxUnitTestConditions RelativePower-1dBm 25 °C ,PowerSupply Voltage=5V2441MHz π/4DQPSK Modulation DEVMRMS6% DEVM99%10% ShanghaiZenchantElectronicsLimited ZEN-BDM11ASpecificationENV1.00 7 AccuracyDEVMPeak15% Adjacent Channel Transmit Power +2MHz-40dBm -2MHz-38dBm +3MHz-44dBm -3MHz-35dBm 6.6.2Receive BasicDataRate ParameterMinTypMaxUnitTestConditions Sensitivity-90dBm 25 °C ,PowerSupply Voltage=5V2441MHz Co-channelInterference Rejection -13dB AdjacentChannel TransmitPower +1MHz+5dBm +1MHz+2dBm +2MHz+37dBm -2MHz+36dBm +3MHz+40dBm -3MHz+35dBm EnhancedDataRate ParameterMinTypMaxUnitTestConditions Sensitivity-90dBm 25°C,PowerSupply Voltage=5V2441MHz Co-channelInterference Rejection -13dB AdjacentChannel TransmitPower +1MHz+5dBm +1MHz+2dBm +2MHz+37dBm -2MHz+36dBm +3MHz+40dBm -3MHz+35dBm 7.Releasenotes DataVersionInstructions 2022.03.03V1.0NewEnglishdocument Shanghai Zenchant Electronics Limited ZEN-BDM 11A Specifi cation EN V1.00 8 NCC警告語 取…

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XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD. (2025.11.17) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:YMX-ZENBDM11A) [XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD.](“theapplicant”) certifiesthattheequipmentforwhichauthorizationissoughtisnot“covered” equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature) (Applicantprintedname) PengfeiCui XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD. (2025.11.17) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:YMX-ZENBDM11A) [XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD.](“theapplicant”) certifiesthat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)PengfeiCui

AttestationStatements TO:FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046,USA RE:AttestationStatementsPart2.911(d)(7)requestfor(FCCID:YMX-ZENBDM11A) (XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD.),theundersigned, herebyauthorize(CozziaUSALLC)toactasourdesignatedU.S.agentforserviceof process,(XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD.)acceptsto maintainanagentfornolessthanoneyearafterthegranteehasterminatedall marketingandimportationortheconclusionofanyCommission-relatedproceeding involvingtheequipment. (CozziaUSALLC)acceptstheresponsibilitytoactasdesignatedU.S.agentforserviceof process,providesanagentfornolessthanoneyearafterthegranteehasterminatedall marketingandimportationortheconclusionofanyCommission-relatedproceeding involvingtheequipment. ApplicantInformation： Companyname:XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD. ContactName:CuiPengfei Address:（5/F）NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,FujianCHINA FRN:0020057428 TelephoneNo:18059250350 Email:[email protected] U.S.AgentInformation: CompanyName:CozziaUSALLC Address:861S.OakParkRoad，Covina,CA91724 FRN:0025490376 ContactName:JimmyLo TelephoneNo:877-977-0656 Email:[email protected] ApplicantSignature:CuiPengfeiAgentSignature: (iftheagentisdifferentfromtheapplicant) Applicantprintedname:Agentprintedname:

XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD AgentAuthorizationLetter 2025-11-15 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenMostTechnologyServiceCo.,Ltd.toact onourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthe signingofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuse Actof1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, Name:PengfeiCui Position:SafetyEngineer CompanyName:XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD Address:(5/F)NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,CHINA Tel/Fax+86-592-7266925/+86-592-5532788 E-Mail:[email protected]

XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD LongTermConfidentialityRequestLetter 2025-11-17 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:CONFIDENTIALITYREQUESTFOR(FCCID:YMX-ZENBDM11A) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459of CFR47.Wehaverequestedthatthe -e.g.Blockdiagram -e.g.SCH -e.g.OperationalDescription requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublicreview. Theabovedocumentsarecompanyproprietaryinformationthatcouldnevergetinto thepossessionofyourcompetition. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Name:PengfeiCui Position:SafetyEngineer CompanyName:XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD Address:(5/F)NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,CHINA Tel/Fax+86-592-7266925/+86-592-5532788 E-Mail:[email protected]

XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD RequestforModular/LimitedModularApproval Date:November24,2025 Subject:Manufacturer’sDeclarationfor☐-ModularApproval☐-SplitModularApproval ☐-LimitedModularApproval☐-LimitedSplitModularApproval ConfidentialityRequestfor:______(YMX-ZENBDM11A)______ 8BasicRequirements–FCCPart15.212(a)(1) ForItemsMarked“NO(*)”,theLimitedModuleDescriptionMustbeFilledOutontheFollowingPages ModularApprovalRequirementRequirementMet 1.ThemodulartransmittermusthaveitsownRFshielding.Thisisintendedtoensurethatthemodule doesnothavetorelyupontheshieldingprovidedbythedeviceintowhichitisinstalledinorderforall modulartransmitteremissionstocomplywithFCClimits.Itisalsointendedtopreventcoupling betweentheRFcircuitryofthemoduleandanywiresorcircuitsinthedeviceintowhichthemoduleis installed.Suchcouplingmayresultinnon-compliantoperation.Thephysicalcrystalandtuning capacitorsmaybelocatedexternaltotheshieldedradioelements.15.212(a)(1)(i) ☐-YES☐-NO(*) Details:<example–ThemodulecontainsametalshieldwhichcoversallRFcomponentsandcircuitry.Theshieldislocatedon thetopoftheboardnexttoantennaconnector> 2.Themodulartransmittermusthavebufferedmodulation/datainputs(ifsuchinputsareprovided)to ensurethatthemodulewillcomplywithFCCrequirementsunderconditionsofexcessivedataratesor over-modulation.15.212(a)(1)(ii) ☐-YES☐-NO(*) Details:<example–Datatothemodulationcircuitisbufferedasdescribedintheoperationaldescriptionprovidedwiththe application> 3.Themodulartransmittermusthaveitsownpowersupplyregulationonthemodule.Thisisintendedto ensurethatthemodulewillcomplywithFCCrequirementsregardlessofthedesignofthepower supplyingcircuitryinthedeviceintowhichthemoduleisinstalled.15.212(a)(1)(iii) ☐-YES☐-NO(*) Details:<example–Themodulecontainsitsownpowersupplyregulation.Pleaserefertoschematicfiledwiththisapplication> 4.Themodulartransmittermustcomplywiththeantennaandtransmissionsystemrequirementsof§§ 15.203,15.204(b),15.204(c),15.212(a),and2.929(b).Theantennamusteitherbepermanently attachedoremploya‘‘unique’’antennacoupler(atallconnectionsbetweenthemoduleandthe antenna,includingthecable).The‘‘professionalinstallation’’provisionof§15.203isnotapplicable tomodulesbutcanapplytolimitedmodularapprovalsunderparagraph15.212(b).15.212(a)(1)(iv) ☐-YES☐-NO(*) Details:<example–ThemoduleconnectstoitsantennausinganUFLconnectorwhichisconsideredanon-standard connector.Alistofantennastestedandapprovedwiththisdevicemaybefoundinusersmanualprovidedwiththeapplication> 5.Themodulartransmittermustbetestedinastand-aloneconfiguration,i.e.,themodulemustnotbe insideanotherdeviceduringtesting.Thisisintendedtodemonstratethatthemoduleiscapableof complyingwithPart15emissionlimitsregardlessofthedeviceintowhichitiseventuallyinstalled. Unlessthetransmittermodulewillbebatterypowered,itmustcomplywiththeAClineconducted requirementsfoundinSection15.207.ACorDCpowerlinesanddatainput/outputlinesconnectedto themodulemustnotcontainferrites,unlesstheywillbemarketedwiththemodule(seeSection 15.27(a)).Thelengthoftheselinesshallbelengthtypicalofactualuseor,ifthatlengthisunknown,at least10centimeterstoinsurethatthereisnocouplingbetweenthecaseofthemoduleandsupporting equipment.Anyaccessories,peripherals,orsupportequipmentconnectedtothemoduleduringtesting shallbeunmodifiedorcommerciallyavailable(seeSection15.31(i)).15.212(a)(1)(v) ☐-YES☐-NO(*) Details:<example–Themodulewastestedstand-aloneasshownintestsetupphotographsfiledwiththisapplication> XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD ModularApprovalRequirementRequirementMet 6.ThemodulartransmittermustbelabeledwithitsownFCCIDnumber,oruseanelectrondisplay(see KDBPublication784748). IfusingapermanentlyaffixedlabelwithitsownFCCIDnumber,iftheFCCIDisnotvisiblewhen themoduleisinstalledinsideanotherdevice,thentheoutsideofthedeviceintowhichthemoduleis installedmustalsodisplayalabelreferringtotheenclosedmodule.Thisexteriorlabelcanusewording suchasthefollowing:“ContainsTransmitterModuleFCCID:XYZMODEL1”or“ContainsFCCID: XYZMODEL1.”Anysimilarwordingthatexpressesthesamemeaningmaybeused.TheGranteemay eitherprovidesuchalabel,anexampleofwhichmustbeincludedintheapplicationforequipment authorization,or,mustprovideadequateinstructionsalongwiththemodulewhichexplainthis requirement.Inthelattercase,acopyoftheseinstructionsmustbeincludedintheapplicationfor equipmentauthorization. IfthemodulartransmitterusesanelectronicdisplayoftheFCCidentificationnumber,theinformation mustbereadilyaccessibleandvisibleonthemodulartransmitteroronthedeviceinwhichitis installed.Ifthemoduleisinstalledinsideanotherdevice,thentheoutsideofthedeviceintowhichthe moduleisinstalledmustdisplayalabelreferringtotheenclosedmodule.Thisexteriorlabelcanuse wordingsuchasthefollowing:“ContainsFCCcertifiedtransmittermodule(s).”Anysimilarwording thatexpressesthesamemeaningmaybeused.Theusermanualmustincludeinstructionsonhowto accesstheelectronicdisplay.Acopyoftheseinstructionsmustbeincludedintheapplicationfor equipmentauthorization.15.212(a)(1)(vi) ☐-YES☐-NO(*) Details:<example–Thereisalabelonthemoduleasshowninthelabelingexhibitfiledwiththisapplication.Hostspecific labelinginstructionsareshownintheinstallationmanual.filedwiththisapplication.> 7.Themodulartransmittermustcomplywithallspecificruleoroperatingrequirementsapplicabletothe transmitter,includingalltheconditionsprovidedintheintegrationinstructionsbythegrantee.Acopy oftheseinstructionsmustbeincludedintheapplicationforequipmentauthorization.Forexample, thereareverystrictoperationalandtimingrequirementsthatmustbemetbeforeatransmitteris authorizedforoperationunderSection15.231.Forinstance,datatransmissionisprohibited,exceptfor operationunderSection15.231(e),inwhichcasethereareseparatefieldstrengthlevelandtiming requirements.Compliancewiththeserequirementsmustbeassured.15.212(a)(1)(vii) ☐-YES☐-NO(*) Details:<example–ThemodulecomplieswithFCCPart15Crequirements.InstructionstotheOEMinstallerareprovidedin theinstallationmanualfiledwiththisapplication.> 8.ThemodulartransmittermustcomplywithanyapplicableRFexposurerequirements.Forexam…

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Model No.: ZEN-BDM11A FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE Model No.: ZEN-BDM11A LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE Model No.: ZEN-BDM11A TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE

Model No.: ZEN-BDM11A Page 1 of 2 INTERNAL PHOTO OF SAMPLE INTERNAL PHOTO OF SAMPLE PCB Antenna Location Model No.: ZEN-BDM11A Page 2 of 2 INTERNAL PHOTO OF SAMPLE PCB

ShenzhenMostTechnologyServiceCo.,Ltd. EastA,1floorofNewAolinFactorybuiding,LangshanErlu,NorthDistrict, Hi-techIndustryPark,Nanshan,Shenzhen,Guangdong,China RFExposureEvaluationReport ReportReferenceNo. ....................... : FCCID.. ............................................... : MTEB25100173-H YMX-ZENBDM11A Compiledby (position+printedname+signature)..:FileadministratorsAlisaLuo Supervisedby (position+printedname+signature)..:TestEngineerSunnyDeng Approvedby (position+printedname+signature) .. : ManagerYvetteZhou Dateofissue ......................................... :Oct.24,2025 RepresentativeLaboratoryName . :ShenzhenMostTechnologyServiceCo.,Ltd. Address.................................................: EastA,1/F.,NewAolinFactoryBuiding,LangshanErlu,North Area,Hi-TechIndustrialPark,NanshanDistrict,Shenzhen, Guangdong,China Applicant’sname...............................:XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUP CO.,LTD. Address ................................................. : (5/F)NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,Fujian CHINA Testspecification/Standard............: 47CFRPart1.1307;47CFRPart1.1310 KDB447498D01GeneralRFExposureGuidancev06 TRFOriginator......................................:ShenzhenMostTechnologyServiceCo.,Ltd. ShenzhenMostTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenMostTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenMostTechnologyServiceCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription........................: BluetoothModule TradeMark............................................: N/A Model/Typereference.........................: ZEN-BDM11A ListedModels......................................: N/A ModulationType..................................: GFSK,π/4DQPSK,8DPSK OperationFrequency .......................... : From2402MHzto2480MHz HardwareVersion ................................. V1.0 SoftwareVersion...................................V1.0 Rating.....................................................: DC3.3V/5V<20mA Result ..................................................... :PASS ReportNo.:MTEB25100173-HPage 2 of 6 TESTREPORT EquipmentunderTest:BluetoothModule Model/Type:ZEN-BDM11A ListedModels: N/A Remark N/A Applicant: XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD. Address: (5/F)NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,Fujian CHINA Manufacturer: XIAMENHEALTHCAREELECTRONICCO.,LTD. Address: 65-66#,62-63#BUILDING,SIMINGZONE,TONGAN INDUSTRIALDISTRICT,XIAMEN CITY,FUJIANPROVINCE,P.R.CHINA TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:MTEB25100173-HPage 3 of 6 1.RevisionHistory RevisionIssueDateRevisionsRevisedBy 002025.10.24InitialIssueAlisaLuo ReportNo.:MTEB25100173-HPage 4 of 6 2.SAREvaluation 2.1RFExposureComplianceRequirement 2.1.1StandardRequirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06 4.3.1.StandaloneSARtestexclusionconsiderations UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-gheador bodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions,bymeasurementor numericalsimulation,isnotrequiredwhenthecorrespondingSARExclusionThresholdcondition,listed below,issatisfied. 2.1.2Limits AccordingtoFCCPart1.1310:Thecriterialistedinthefollowingtableshallbeusedtoevaluatethe environmentimpactofhumanexposuretoradiofrequency(RF)radiationasspecifiedinpart1.1307(b) F=FrequencyinMHz FriisFormula Friistransmissionformula:Pd=(Pout*G)/(4*Pi*R2)Where Pd=powerdensityinmW/cm2 Pout=outputpowertoantennainmW G=gainofantennainlinearscale Pi=3.1416 R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm2.Ifweknowthemaximumgainoftheantennaandthetotalpower inputtotheantenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. ReportNo.:MTEB25100173-HPage 5 of 6 2.1.3EUTRFExposure BLE GFSK Testchannel PeakOutputPower (dBm) Tuneuptolerance (dBm) Maximumtune-upPower (dBm) Lowest(2402MHz)2.802.80±13.8 Middle(2440MHz)2.442.44±13.44 Highest(2480MHz)2.942.94±13.94 BLE Worstcase:GFSK Channel Maximum tune-upPower (dBm) Maximumtune-up Power (MW) AntennaGain (dBi) Power Density atR=20 cm (mW/cm2) LimitResult Highest(2480MHz)3.942.481.70.000731.0Pass Note:1)RefertoreportMTEB25100173-R1forEUTtestMaxConductedaverageOutputPowervalue. Note:2)Pd=(Pout*G)/(4*Pi*R2)=(2.48*1.48)/(4*3.1416*20 2 )=0.00073 BTclassic GFSK Testchannel PeakOutputPower (dBm) Tuneuptolerance (dBm) Maximumtune-upPower (dBm) Lowest(2402MHz)2.732.73±13.73 Middle(2441MHz)0.090.09±11.09 Highest(2480MHz)0.760.76±11.76 π/4DQPSK Testchannel PeakOutputPower (dBm) Tuneuptolerance (dBm) Maximumtune-upPower (dBm) Lowest(2402MHz)1.461.46±12.46 Middle(2441MHz)1.011.01±12.01 Highest(2480MHz)1.601.60±12.6 ReportNo.:MTEB25100173-HPage 6 of 6 8DPSK Testchannel PeakOutputPower (dBm) Tuneuptolerance (dBm) Maximumtune-upPower (dBm) Lowest(2402MHz)1.901.90±12.9 Middle(2441MHz)1.521.52±12.52 Highest(2480MHz)2.072.07±13.07 Worstcase:GFSK Channel Maximum tune-upPower (dBm) Maximumtune-up Power (MW) AntennaGain(dBi) Power Density atR=20 cm (mW/cm2) LimitResult Lowest(2402MHz)3.73 2.361.70.000691.0Pass Note:1)RefertoreportMTEB25100173-RforEUTtestMaxConductedaverageOutputPowervalue. Note:2)Pd=(Pout*G)/(4*Pi*R2)=(2.36*1.48)/(4*3.1416*202)=0.00069 Note:3)EUT&apos;sBluetoothmoduleismorethan20cmawayfromthehumanbody. .......................THEENDOFREPORT.........................

ShenzhenMostTechnologyServiceCo.,Ltd. No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark,Nanshan, Shenzhen,Guangdong,China. TESTREPORT FCCRulesPart15.247 ReportReferenceNo........................: FCCID.................................................: MTEB25100173-R YMX-ZENBDM11A Compiledby (position+printedname+signature)..:FileadministratorsAlisaLuo Supervisedby (position+printedname+signature)..:TestEngineerSunnyDeng Approvedby (position+printedname+signature) .. : ManagerYvetteZhou Dateofissue.........................................:Oct.24,2025 RepresentativeLaboratoryName.:ShenzhenMostTechnologyServiceCo.,Ltd. Address ................................................. : EastA,1/F.,NewAolinFactoryBuiding,LangshanErlu,North Area,Hi-TechIndustrialPark,NanshanDistrict,Shenzhen, Guangdong,China Applicant’sname...............................:XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUP CO.,LTD. Address.................................................: (5/F)NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,Fujian CHINA Testspecification/Standard ............ : FCCRulesPart15.247 TRFOriginator......................................:ShenzhenMostTechnologyServiceCo.,Ltd. ShenzhenMostTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenMostTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenMostTechnologyServiceCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription ........................ : BluetoothModule TradeMark ............................................ : N/A Model/Typereference ......................... : ZEN-BDM11A ListedModels......................................: N/A ModulationType..................................: GFSK,π/4DQPSK,8DPSK OperationFrequency..........................: From2402MHzto2480MHz HardwareVersion.................................V1.0 SoftwareVersion ................................... V1.0 Rating ..................................................... : DC3.3V/5V<20mA Result.....................................................:PASS ReportNo.:MTEB25100173-RPage 2 of 60 TESTREPORT EquipmentunderTest:BluetoothModule Model/Type:ZEN-BDM11A ListedModels: N/A Remark N/A Applicant: XIAMENCOMFORTSCIENCE&TECHNOLOGYGROUPCO.,LTD. Address: (5/F)NO.168,QIANPUROAD,SIMINGDISTRICT,XIAMEN,Fujian CHINA Manufacturer: XIAMENHEALTHCAREELECTRONICCO.,LTD. Address: 65-66#,62-63#BUILDING,SIMINGZONE,TONGAN INDUSTRIALDISTRICT,XIAMEN CITY,FUJIANPROVINCE,P.R.CHINA TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:MTEB25100173-RPage 3 of 60 Contents 1REVISIONHISTORY...........................................................................................................................4 2TESTSTANDARDS..............................................................................................................................5 3SUMMARY.................................................................................................................................................6 3.1GeneralRemarks..........................................................................................................................................6 3.2ProductDescription.....................................................................................................................................6 3.3EquipmentUnderTest.................................................................................................................................6 3.4ShortdescriptionoftheEquipmentunderTest(EUT).............................................................................6 3.5EUToperationmode.....................................................................................................................................7 3.6BlockDiagramofTestSetup.......................................................................................................................7 3.7TestItem(EquipmentUnderTest)Description*........................................................................................7 3.8AuxiliaryEquipment(AE)Description........................................................................................................7 3.9AntennaInformation*...................................................................................................................................7 3.10RelatedSubmittal(s)/Grant(s).................................................................................................................8 3.11Modifications...............................................................................................................................................8 3.12EUTconfiguration.......................................................................................................................................8 4TESTENVIRONMENT........................................................................................................................9 4.1Addressofthetestlaboratory....................................................................................................................9 4.2Environmentalconditions............................................................................................................................9 4.3Summaryofmeasurementresults............................................................................................................10 4.4Statementofthemeasurementuncertainty............................................................................................10 4.5EquipmentsUsedduringtheTest............................................................................................................11 5TESTCONDITIONSANDRESULTS.............................................................…

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ReportNo.:MTEB25100173-RPage 46 of 60 APPENDIXIV.CarrierFrequenciesSeparation TestResult ModulationPacket LeftCenter frequency (MHz) RightCenter frequency (MHz) Hopping Frequency Separation (MHz) Limit(MHz)Result GFSKDH52440.00992441.00120.99130.693PASS GFSKDH52440.15782440.86020.70240.693PASS GFSKDH52439.91662441.01921.10260.693PASS π/4DQPSK2-DH52440.02441.00871.00870.887PASS π/4DQPSK2-DH52440.15662441.13950.98290.887PASS π/4DQPSK2-DH52440.03242441.16861.13620.887PASS 8DPSK3-DH52440.01172441.14281.13110.867PASS 8DPSK3-DH52439.86922441.00241.13320.867PASS 8DPSK3-DH52439.84582441.13141.28560.867PASS TestGraphs GFSKGFSK GFSKπ/4DQPSK π/4DQPSKπ/4DQPSK ReportNo.:MTEB25100173-RPage 47 of 60 8DPSK8DPSK 8DPSK ReportNo.:MTEB25100173-RPage 48 of 60 APPENDIXV.ConductedOutOfBandEmission TestResult Non-Hopping ModulationPacketChannel OOB Emission Frequency (MHz) OOB Emission Level (dBm) Limit (dBm) OverLimit (dB) Result GFSKDH5 0 2400.00-49.797-19.58-30.217PASS 4804.26-56.089-19.58-36.509PASS 7206.38-50.364-19.58-30.785PASS 9607.87-48.054-19.58-28.474PASS 24932.6-45.880-19.58-26.300PASS 39 4882.30-53.334-20.13-33.204PASS 7323.11-52.207-20.13-32.077PASS 9763.93-46.349-20.13-26.219PASS 24993.1-45.666-20.13-25.536PASS 78 2483.50-51.584-19.44-32.144PASS 4960.33-52.652-19.44-33.212PASS 7439.85-51.637-19.44-32.197PASS 9919.99-45.739-19.44-26.299PASS π/4DQPSK2-DH5 0 2400.00-49.063-19.78-29.283PASS 4804.26-59.722-19.78-39.942PASS 7205.75-53.391-19.78-33.611PASS 9607.87-45.939-19.78-26.159PASS 39 4881.67-56.633-20.1-36.533PASS 7323.11-53.510-20.1-33.410PASS 9763.93-45.107-20.1-25.007PASS 24980.7-44.644-20.1-24.544PASS 78 2483.50-51.896-19.48-32.416P…

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