2BMNH-MZS-3206TBluetooth speaker

MZS-3206T

TCBCALLpágina1 FileFCCID:2BMNH-MZS-3206T PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:https://opencorporates.com/companies/us_co/20248329243 Ingoogle: TCBCALLpágina2 TCBCALLpágina3 TCBCALLpágina4 TCBCALLpágina5 TCBCALLpágina6 TCBCALLpágina7 TCBCALLpágina8 TCBCALLpágina9 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"C5266091_X23_Ed1_US_Agent_Letter" includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"C5266091_X23_Ed1_US_Agent_Letter" >

AttestationStatement. OldCode:C526609124NewCode:00015544Ed.3 Changereason:FRNisaddedtotheApplicantinformationsection. 1/1 TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 TheCommissionadoptedrulesthatprohibitequipmentauthorizationfor“covered” telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentitiesidentified ontheCommission’sCoveredList 1 ,whichisperiodicallyupdated.SeetheCoveredListformore details.ThisAttestationStatementistoconfirmthatwefollowtheSection2.911(d)(5)(i)-(ii) Applicant Companyname:DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD Granteecode:2BMNH FRN:0036382737 FCCID:2BMNH-MZS-3206T ContactName:YifeiZhong Address:540,ZhenxingRoad,DongchengDistrict,DongguanCity,GuangdongProvinceChina TelephoneNo.:18666296320 Email:[email protected] i.DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD(“the applicant”)certifiesthattheequipmentforwhichauthorizationissoughtis not“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules.Theapplicant mustsignthiscertification. ii.DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD(“the applicant”)certifiesthat,asofthedateofthefilingoftheapplication,the applicant[isnot](asaspecificallynamedentityoranyofitssubsidiariesor affiliates)identifiedontheCoveredListasanentityproducing“covered” equipment.Theapplicantmustsignthiscertification. [DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD](“theapplicant”) certifiesthat,asofthedateofthefilingofthe application,theapplicant[isnot]identifiedontheCoveredList asanentityproducing“covered” equipment. Date:2026.8.3 Applicant’sName:YifeiZhong Title:Manager Signature 1 TheCommission’sCoveredListispublishedbythePublicSafetyandHomelandSecurityBureauandpostedonthe Commission’swebsite.ThisCoveredList,whichisperiodicallyupdated,identifiesparticularequipment,producedby particularentities,thatconstitutes“covered”equipment.https://www.fcc.gov/supplychain/coveredlist

DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD Code00018768Ed.2 Item1.Thedeviceisabletoinstallsoftware/programinstallation? ☐ Yes,gotoItem2. ☒ No.Inthiscase,therestoftheitemsdonotapply.ThedevicecannotsupportinstallationofKaspersky cybersecurityoranti-virussoftware. Item2.TechnicalRequirementsforKasperskyCybersecuritySoftware: #GeneralRequirements(ForallDevices)Yes/NoorN/AComments 1Internetconnectionforactivationandupdates(ForallOperating Systems) N/A #GeneralRequirements(ForWindowsDevices)Yes/NoorN/AComments Device Companyname Granteecode FCCID FRN Contactname Address Telephonenumber E-mail Chipset/moduleinformation OperatingSystem(ifapplicable) StorageCapacity(harddriveorother permanentmemorystorage,ifapplicable) Bluetooth speaker DONGGUAN LONGDA AUDIO DIGITAL TECHNOLOGY CO.,LTD 2BMNH 2BMNH-MZS-3206T 0036382737 Yifei Zhong 540, Zhenxing Road, Dongcheng District, Dongguan City, Guangdong Province China 18666296320 [email protected] AB6024E N/A N/A 2 1Storage:1500MBfreespaceontheharddriveN/A 2OperatingSystem: MicrosoftWindows8,8.1,10&11Home/Pro/Enterprise Microsoft Windows7Starter/HomeBasic&Premium/Professional/ UltimateSP1orhigher N/A 3Processor:1GHzorhigher(x86orx64)N/A 4Memory(RAM)1GB(32-bit)or2GB(64-bit)N/A 5ScreenResolution:Minimumresolutionof1024x768N/A #GeneralRequirements(FormacOSdevices)Yes/NoorN/AComments 1OperatingSystemmacOS®13–14N/A 2Memory(RAM)4GBN/A 3Storage:3455MBfreespaceontheharddriveN/A #GeneralRequirements(ForAndroidDevices)Yes/NoorN/AComments 1Storage:150MBfreespaceN/A 2OperatingSystem:Android™10–14N/A 3ScreenResolution:Minimumresolutionof320x480N/A #GeneralRequirements(foriOSdevices)Yes/NoorN/AComments 1Storage:150MBfreespaceN/A 2OperatingSystem:iOS®17N/A #GeneralRequirements(ForLinuxsystem)Yes/NoorN/AComments 1Harddrive:1GBoffreespaceN/A 3 2CPU:IntelPentium1GHzorhigherN/A 3RAM:1GBN/A 4Minimumsoftwarerequirements: AlmaLinuxOS8orlater; AlterOS7.5orlater; AstraLinuxCommonEdition2.12orlater; CentOS6.7orlater; DebianGNU/Linux10.0orlater; EulerOS2.0orlater; OracleLinux7.3orlater; RedHatEnterpriseLinux6.7orlater; RockyLinux8.5orlater; SUSELinuxEnterpriseServer12.5orlater; Ubuntu12.04orlater; UncomOSHome/Business/Education/Enterprise2.2orlater; ALTLinuxWorkstaton/WorkstationK/Server/Education8or later; ROSALinuxWorkstation/Server12orlater; REDOS7.3andlater; N/A Afterreviewedthetechnicalrequirements,isthedevicecapableofsupportingtheinstallationof Kasperskysoftware? ☐Yes,gotoItem3. ☒ No.Inthiscase,therestoftheitemsdonotapply.ThedevicecannotsupportinstallationofKaspersky software Item3.ConnectivityCapabilities: 4 #PhysicalInterfacePurposeJustification 1 1 #WirelessInterfacePurposeJustification 1 1 Afterthereviewofthisitems,thedevice: ☒Cannotsupportinstallationofanycybersecurityoranti-virussoftwareonthecoveredlist. ☐ Potentiallycanoperatewithanycybersecurityoranti-virussoftwareonthecoveredlist–additionalthird- partyproofisprovidedtodemonstratecompliancewithrequirementsasof2.911(d)5(i),(ii)–“Proofof CompliancewithCoveredListSoftwareRequirements”ofthisdocumentapplies Signature:Name:YifeiZhong Date:2026.8.3 Oncethedocumentisfilledin,pleaseproceedtoprintaPDFofthisWord 1 Thejustificationfieldisusedtojustifywhythesoftwarecannotbereceivedthroughthatinterface.Checktheannexformore indications.

DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD ProductSimilarityDeclaration Productname:Bluetoothspeaker Modelname:MZS-3206T MZS-3226T,MZS-3216T,HF-3216 TradeName:N/A FCCID:2BMNH-MZS-3206T We(DONGGUANLONGDAAUDIODIGITALTECHNOLOGY CO.,LTD)hereby statethatallthemodelsareelectricalidenticalincludingthesame softwareparameterandhardwaredesign(i.e.,circuitdesign,PCB Layout,RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),Theonly differenceistheappearanceandmodelname. Signature: Name:YifeiZhong Title:Manager Place:540,ZhenxingRoad,DongchengDistrict,DongguanCity,GuangdongProvince Date:Jul.31,2026

C5266091_X10_Ed.2 1/1 DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2026.8.3 Subject:RequestforConfidentiality FCCID:2BMNH-MZS-3206T ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof______daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name:YifeiZhong Title:Manager

C5266091_X8_Ed.1 1/1 LetterofAuthorization DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD Company:DONGGUANLONGDAAUDIODIGITALTECHNOLOGY CO.,LTD Address:540,ZhenxingRoad,DongchengDistrict,DongguanCity, GuangdongProvinceChina ProductName:Bluetoothspeaker ModelNumber:MZS-3206T,MZS-3226T,MZS-3216T,HF-3216 FCCIdentifier:2BMNH-MZS-3206T WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:YifeiZhongDate:2026.8.3 Title:Manager Signatureofapplicant:

EUTPHOTO(ExternalPhotos) TestModel:MZS-3206T ※※※※※ENDOFREPORT※※※※※

Labelandlabellocation FCCIDLABEL: High:1cm Wide:2cm LabelLocation: FCCID:2BMNH-MZS-3206T

EUTPHOTO(InternalPhotos) TestModel:MZS-3206T ※※※※※ENDOFREPORT※※※※※ BTANT FMANT

FCCID:2BMNH-MZS-3206T RFEXPOSUREEVALUATION AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093, UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForEDR Mode FrequencyPower Tune-up power Maxtune-up power Maxtune-up power Min. Distance Calc. thresholds limit (MHz)(dBm)(dBm)(dBm)(mW)(mm) GFSK24022.034 2±1 32.0050.61993.0 π/4-DQP SK 24022.869 2±1 32.0050.61993.0 8-DPSK24023.303 3±1 4 2.5150.77803.0 Conclusion: 1.[(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]<3.0. 2.SARTestExclusionThresholdsis3.0forseparationdistance5mm.Therefore,SAR testisnotrequired.

ReportNo.:ZKT-2607221451E Page1of67 FCCTESTREPORT FCCID:2BMNH-MZS-3206T ReportNumber.....................................: ZKT-2607221451E DateofTest ...................................................... :Jun.22,2026toJul.31,2026 Dateofissue ......................................... :Jul.31,2026 Totalnumberofpages.........................67 TestResult .......................................... : PASS TestingLaboratory. .......................... : ShenzhenZKTTechnologyCo.,Ltd. Address...............................................: 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname.............................: DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD Address...............................................: 540,ZhenxingRoad,DongchengDistrict,DongguanCity,Guangdong Province Manufacturer'sname......................: DONGGUANLONGDAAUDIODIGITALTECHNOLOGYCO.,LTD Address ............................................... : 540,ZhenxingRoad,DongchengDistrict,DongguanCity,Guangdong Province Testspecification: Standard................................................: FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10-2020+Cor.1-2023+C63.10a-2024+Erratato C63.10a-2024 Testprocedure ..................................... : / Non-standardtestmethod................:N/A TestReportFormNo........................: TRF-EL-111_V0 TestReportForm(s)Originator ..... : ZKTTesting MasterTRF ........................................ : Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmaybe alteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname ..................................... :Bluetoothspeaker Trademark...........................................:N/A Model/Typereference ......................... :MZS-3206T MZS-3226T,MZS-3216T,HF-3216 Ratings..................................................: Input:5V Batterycapacity:DC3.7V,1200mAh,4.44Wh ReportNo.:ZKT-2607221451E Page2of67 Testingprocedureandtestinglocation: TestingLaboratory ....................................... : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................................ :1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : JacksonFang Reviewer(name+signature).......................: LakeXie Approved(name+signature) ....................... : ReportNo.:ZKT-2607221451E Page3of67 TableofContents Page TABLEOFCONTENTS............................................................................................................3 1.VERSION..................................................................................................................................5 2.TESTSUMMARY...................................................................................................................6 2.1TESTFACILITY.........................................................................................................................7 2.2MEASUREMENTUNCERTAINTY......................................................................................7 3.GENERALINFORMATION..................................................................................................8 3.1GENERALDESCRIPTIONOFEUT...................................................................................8 3.2TESTSETUPCONFIGURATION.....................................................................................10 3.3SUPPORTEQUIPMENT......................................................................................................10 3.4TESTMODE.............................................................................................................................10 4.EMCEMISSIONTEST........................................................................................................13 4.1CONDUCTEDEMISSIONS.................................................................................................13 4.1.1POWERLINECONDUCTEDEMISSIONLIMITS...............................................13 4.1.2TESTPROCEDURE......................................................................................................13 4.1.3DEVIATIONFROMTESTSTANDARD...................................................................13 4.1.4TESTSETUP...................................................................................................................14 4.1.5EUTOPERATINGCONDITIONS..............................................................................14 4.1.6TESTRESULT................................................................................................................15 4.2RADIATEDEMISSIONS..................................................................................................17 4.2.1RADIATEDEMISSIONLIMITS..................................................................................17 4.2.2TESTPROCEDURE......................................................................................................17 4.2.3DEVIATIONFROMTESTSTANDARD...................................................................18 4.2.4TESTSETUP...................................................................................................................18 4.2.5EUTOPERATINGCONDITIONS..............................................................................19 4.2.6TESTRESULTS.............................................................................................................19 5.RADIATEDBANDEMISSIONMEASUREMENT........................................................28 5.1TESTREQUIREMENT:........................................................................................................28 5.2TESTPROCE…

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RCX 2025.10.17 RF Engineer CK Structural engineer 13530576606 Freq uenc y band 2402~2480MHz Shenzhen Yongcheng International Technology Co., Ltd. 咏成国际科技有限公司 Address: Shenzhen Baoan District Gushu Xingyu Road Tongan Zhichuang Park F building 707 (Yongcheng International) Antenna test report 天线尺寸 1 LOSS/SWR 2 T90(H)圆度 8.87 9.37 9.85 10.06 9.68 9.369.03 8.858.458.158.95 Gain 15deg (dBi) E1(XZ)波瓣宽度 80.0079.0079.0080.0081.0080.0074.0071.0070.0071.0079.00 E1(XZ)前后比 1.47 1.751.78 1.41 1.11 1.251.96 2.242.231.85 1.65 E2(YZ)波瓣宽度 44.0044.0044.0045.0045.0046.0069.0073.0072.0070.0053.00 E2(YZ)前后比 3.84 4.274.51 4.033.563.052.301.96 2.11 2.32 2.44 最大增益处轴比(P) 20.9224.3120.9917.0414.1012.92 9.81 9.9710.55 11.4514.22 仰角10度最差(大)轴比(P) 52.2051.92 51.48 51.25 48.98 46.3550.7741.2053.13 41.58 52.96 Hc(XY)波瓣宽度 90.0095.0099.0099.0092.00 85.0082.0086.00 110.00 128.00 117.00 Hc(XY)前后比 1.321.321.26 1.28 1.531.90 2.08 2.001.631.371.32 左旋圆极化效率(%) 6.606.66 6.84 6.666.656.426.106.096.195.61 5.74 右旋圆极化效率(%) 7.787.877.82 7.35 7.086.866.98 6.957.016.42 5.41 Empty Frequency ID 1234 5 6 78 9 1011 Frequency (MHz) 2400.02410.02420.02430.02440.02450.02460.02470.02480.02490.02500.0 Efficiency (dBi) -8.42-8.38-8.34-8.53-8.62-8.77-8.84-8.85-8.79-9.20-9.53 Gain (dBi) -3.45-3.48-3.46-3.64-3.69-3.76-3.88-4.12-4.36 -4.91-5.01 Efficiency (%) 14.3914.5314.6614.0213.73 13.2813.08 13.0413.2012.03 11.15 Directivity (dB) 4.97 4.894.88 4.904.935.014.96 4.72 4.434.294.52 Peak Gain Position (Theta) 98.0098.0098.0098.0098.0098.0098.0098.0098.00 97.0097.00 Peak Gain Position (Phi) 332.00333.00333.00332.00333.00334.00337.00 338.00338.00 336.00333.00 Efficiency ThetaPol (%) 10.97 11.11 11.1910.7210.4610.099.979.739.69 8.738.28 Efficiency PhiPol (%) 3.423.423.473.293.273.193.113.303.523.29 2.87 Upper Hem. Efficiency (%) 7.29 7.47 7.607.30 7.17 6.89 6.646.506.545.925.52 Lower Hem. Efficiency (%) 7.107.067.056.716.566.396.446.546.666.115.63 无源测试数据 3 VER7 增益效果图 4 Frequency ID 1 Frequency (MHz) 2402-2480 Efficiency (dBi) -8.42 Gain (dBi) -3.45 Efficiency (%) 14.39 Directivity (dB) 4.97 Peak Gain Position (Theta) 98.00 Peak Gain Position (Phi) 332.00 Efficiency ThetaPol (%) 10.97 Efficiency PhiPol (%) 3.42 Upper Hem. Efficiency (%) 7.29 Lower Hem. Efficiency (%) 7.10 Peak Gain 4

EUTTESTPHOTO TestModel:MZS-3206T