2A86Y-TG-444Bluetooth speaker

Shenzhenchengtaielectronicandtechnologyco.,LTD 6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:Feb.4,26 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2A86Y-TG-444 Shenzhenchengtaielectronicandtechnologyco.,LTD(“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredList,establishedpursuantto§ 1.50002ofreferencechapter,asanentityproducing“covered”communicationequipment.The equipmentforwhichauthorizationissoughtisnot“covered”telecommunicationsequipmentandvideo surveillanceequipmentproducedbyentitiesidentifiedontheCommission’sCoveredListthatprohibited fromreceivinganequipmentauthorizationpursuanttosection§2.903oftheFCCrules. Sincerelyyours, ApplicantSignature PrintedName:FangRuan Title:Manager Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China Tel.:+8617093468875 Email:[email protected]

Shenzhenchengtaielectronicandtechnologyco.,LTD Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Feb.4,26 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:[2A86Y-TG-444] ProductName:[Bluetoothspeaker] Thisletterservesasanattestationthattheequipmentidentifiedabove☒is/☒isnot(selectone)"covered" softwareasdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,as outlinedinFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, ApplicantSignature PrintedName:FangRuan Title:Manager Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China Tel.:+8617093468875 Email:[email protected] Shenzhenchengtaielectronicandtechnologyco.,LTD Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☒ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☒ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance ☒ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☒ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

Shenzhenchengtaielectronicandtechnologyco.,LTD Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China FileNo.:2026SNUSDA008 U.S.AgentLetterofAttestation To:FederalCommunicationsCommission 7435OaklandMillsRoad,Columbia,MD21046,USA Date:Feb.4,26 Ref: AttestationStatement–Part 2.911(d)(7)filing FCCID:2A86Y-TG-444 [Shenzhenchengtaielectronicandtechnologyco.,LTD](“theapplicant”)certifiesthat,asofthedate ofthefilingoftheapplication,[TTSMARKETINC.](“theagent”)isourdesignatedU.S.agentfor serviceofprocessfortheabovereferenceFCCID.Theapplicantacceptstomaintainanagentfor serviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S., ortheconclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingthe equipment,whicheverislater.Theapplicantfurtheracknowledgesitisourresponsibilitytoinform theFCCwhenevertheagentinformationchanges. [TTSMARKETINC.]("theagent)understanditistheagent'sobligationtoacceptserviceofprocess intheUnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddress. DesignatedU.S.Agent CompanyName:TTSMARKETINC. FRN:0036806057 GC:N/A Address:1178BroadwaySte324,NewYork,NY 10001.USA Signature: ContactPerson:MaverickLim Tel:001-(646)305-2908Email:[email protected] Applicant CompanyName:Shenzhenchengtaielectronicandtechnologyco.,LTD FRN:0033044058 Address:6thFloor,BuildingC,QinyuIndustrial Zone,Sanwei,SanweiCommunity,HangchengStreet, BaoanDistrict,Shenzhen,China Signature: ContactPerson:FangRuan Tel:+8617093468875Email:[email protected]

Shenzhenchengtaielectronicandtechnologyco.,LTD Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China (Feb.04,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2A86Y-TG-444 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow: BlockDiagram Schematics OperationalDescription Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. PursuanttoDA04-1705,theapplicantalsorequeststemporaryconfidentialtreatmentoftheexhibits outlinedbelowforaperiodof(upto180)daysfromthedateofequipmentauthorizationandpriorto marketingintheUnitedStatestopreventtheprematurereleaseofanysensitiveinformation.Applicantis awareoftheirresponsibilitytonotifyDERYCOMintheeventinformationregardingtheproductorthe productismadeavailabletothepublicbeforetherequestedperiodhasexpired.  UserManual Sincerely, (Signature) Title:Manager Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China Tel.:+8617093468875 Email:[email protected]

Shenzhenchengtaielectronicandtechnologyco.,LTD Address:6thFloor,BuildingC,QinyuIndustrialZone,Sanwei, SanweiCommunity,HangchengStreet,BaoanDistrict,Shenzhen,China (Feb.04,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2A86Y-TG-444 I,theundersigned,herebyauthorize(ShenzhenBKCTestingCo.,Ltd.)toactonourbehalfinallmatters relatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(ShenzhenBKCTestingCo.,Ltd.)shallhavethesameeffectasourownandI acknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsofcertification,as specifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswith(Shenzhenchengtai electronicandtechnologyco.,LTD). WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, (Signature) (FullnameofcontactpersonlistedonFCC’swebsite) (Title):Manager Tel:+8617093468875 Fax:+8617093468875 Email:[email protected]

FCCID:2A86Y-TG-444 ExternalPhotos

Label: Bluetoothspeaker Model:TG-444 FCCID:2A86Y-TG-444

FCCID:2A86Y-TG-444 InternalPhotos PCBAntenna

FCC ID:2A86Y-TG-444 RF Exposure Evaluation According toKDB 447498 D01 General RF Exposure Guidance v06and part 2.1093 ， Unless specifically required by thepublished RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the correspondingSAR Test Exclusion Thresholdcondition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances≤5.0mm,the1-gand10-gSARtest exclusion thresholds aredetermined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]ꞏ[√f (GHz) ]≤3.0 for 1-g SAR, and≤7.5 for 10-g extremity SAR, where f (GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to thenearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, So a SAR test is not required Mode Freque ncy (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distanc e (mm) Calc. threshol ds limit GFSK 2402 -0.01 -1 ± 1 01.00005.000.3100 3.0 2441 -0.47 -1±1 01.00005.000.3125 3.0 2480 -1.65 -1 ± 1 01.00005.000.3150 3.0 Π /4-DQ PSK 24020.84 0 ± 1 11.25895.000.3902 3.0 24410.41 0±1 11.25895.000.3934 3.0 2480 -0.76 0 ± 1 11.25895.000.3965 3.0

2.4G-2.48G频段板载PIFA天线测试报告 SPECIFICATIONS Frequency（MHz）2400-2480 PeakGain（dBi）2.499 AverageGain（dBi）＞-4 VSWR＜3.2 Impedance（Ω）50Ω AntennaTypePlannarInvertedFAntennaonboard PolarizationLinear 测试环境：中科国技暗室测试系统 Z X Y 天线实物及物理尺寸 天线无源S参数： 驻波比（ VSWR ）、回波损耗（ ReturnLoss ）及史密斯圆图 天线效率及增益 Frequency（MHz）Gain（dBi）Effciency（%）AverageGain（dBi）Efficiency（dB） 24001.43359.329%-2.717-2.267 24100.92751.861%-3.416-2.852 24200.82952.112%-3.166-2.831 24300.88149.299%-3.258-3.072 24401.19250.672%-3.144-2.952 24501.68853.067%-2.735-2.752 24602.19459.423%-2.276-2.260 24702.11856.680%-2.438-2.466 24802.49961.727%-2.112-2.095 Average1.52954.908%-2.806-2.616 Peak2.49961.727%-2.112-2.095 天线2440MHz2D-ThetaPattern 天线2440MHz2D-PhiPattern 天线2440MHz3D-HorizontalPattern 天线2440MHz3D-VerticalPattern 2440MHz3D-TotalPattern

FCC ID EDR FCC_BT (Part15.247) Test Data FCC ID:2A86Y-TG-444 Report No. : BKC26010424AE-1 TableofContents 1. Duty Cycle..................................................................................................................................................................... 2 2.‐20dB Bandwidth..........................................................................................................................................................5 3. 99% Occupied Bandwidth............................................................................................................................................ 8 4. Peak Output Power.....................................................................................................................................................11 5. Spurious Emissions..................................................................................................................................................... 14 6. Bandedge....................................................................................................................................................................20 7. Carrier Frequencies Separation (Hopping).................................................................................................................28 8. Number of Hopping Channel (Hopping).................................................................................................................... 33 9. Dwell Time (Hopping).................................................................................................................................................35 Page 2 of 40 1. Duty Cycle ConditionAntennaRateFrequency(MHz)Dutycycle(%)Duty_factor NVNTANT11-DH12402.0030.655.14 NVNTANT11-DH12441.0030.655.14 NVNTANT11-DH12480.0030.655.14 NVNTANT12-DH12402.0031.754.98 NVNTANT12-DH12441.0031.754.98 NVNTANT12-DH12480.0030.655.14 Duty_Cycle_NVNT_ANT1_1-DH1_2402 Duty_Cycle_NVNT_ANT1_1-DH1_2441 Page 3 of 40 Duty_Cycle_NVNT_ANT1_1-DH1_2480 Duty_Cycle_NVNT_ANT1_2-DH1_2402 Page 4 of 40 Duty_Cycle_NVNT_ANT1_2-DH1_2441 Duty_Cycle_NVNT_ANT1_2-DH1_2480 Page 5 of 40 2. -20dB Bandwidth ConditionAntennaModulationFrequency(MHz)-20dB BW(MHz)if larger than CFS NVNTANT11-DH12402.000.881No NVNTANT11-DH12441.000.877No NVNTANT11-DH12480.000.877No NVNTANT12-DH12402.001.257Yes NVNTANT12-DH12441.001.254Yes NVNTANT12-DH12480.001.253Yes -20dB_Bandwidth_NVNT_ANT1_1-DH1_2402_00 -20dB_Bandwidth_NVNT_ANT1_1-DH1_2441_00 Page 6 of 40 -20dB_Bandwidth_NVNT_ANT1_1-DH1_2480_00 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2402_00 Page 7 of 40 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2441_00 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2480_00 Page 8 of 40 3. 99% Occupied Bandwidth ConditionAntennaModulationFrequency(MHz)99%%BW(MHz) NVNTANT11-DH12402.000.822 NVNTANT11-DH12441.000.821 NVNTANT11-DH12480.000.822 NVNTANT12-DH12402.001.166 NVNTANT12-DH12441.001.165 NVNTANT12-DH12480.001.165 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2402_00 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2441_00 Page 9 of 40 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2480_00 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2402_00 Page 10 of 40 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2441_00 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2480_00 Page 11 of 40 4. Peak Output Power Condition Antenna Modulation Frequency (MHz) Max. Conducted Power(dBm) Max. Conducted Power(mW) Limit(mW) Result NVNTANT11-DH12402.00-0.011.001000Pass NVNTANT11-DH12441.00-0.470.901000Pass NVNTANT11-DH12480.00-1.650.681000Pass NVNTANT12-DH12402.000.841.21125Pass NVNTANT12-DH12441.000.411.10125Pass NVNTANT12-DH12480.00-0.760.84125Pass Peak_Output_Power_NVNT_ANT1_1-DH1_2402_00 Peak_Output_Power_NVNT_ANT1_1-DH1_2441_00 Page 12 of 40 Peak_Output_Power_NVNT_ANT1_1-DH1_2480_00 Peak_Output_Power_NVNT_ANT1_2-DH1_2402_00 Page 13 of 40 Peak_Output_Power_NVNT_ANT1_2-DH1_2441_00 Peak_Output_Power_NVNT_ANT1_2-DH1_2480_00 Page 14 of 40 5. Spurious Emissions ConditionAntennaModulationTX Mode Ref_level(dBm) Spurious MAX.Value(dBm) LimitResult NVNTANT11-DH12402.00-0.035-43.036-20.035Pass NVNTANT11-DH12441.00-0.487-46.897-20.487Pass NVNTANT11-DH12480.00-1.655-44.277-21.655Pass NVNTANT12-DH12402.00-0.040-48.070-20.040Pass NVNTANT12-DH12441.00-0.514-46.235-20.514Pass NVNTANT12-DH12480.00-1.677-44.172-21.677Pass 1_Reference_Level_NVNT_ANT1_1-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2402_00 Page 15 of 40 1_Reference_Level_NVNT_ANT1_1-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2441_00 Page 16 of 40 1_Reference_Level_NVNT_ANT1_1-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2480_00 Page 17 of 40 1_Reference_Level_NVNT_ANT1_2-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2402_00 Page 18 of 40 1_Reference_Level_NVNT_ANT1_2-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2441_00 Page 19 of 40 1_Reference_Level_NVNT_ANT1_2-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2480_00 Page 20 of 40 6. Bandedge ConditionAntennaModulationTX ModeRef_level(dBm)Bandedge MAX.ValueLimitResult NVNTANT11-DH12402.00-0.035-47.957-20.035Pass NVNTANT11-DH1Hopping_LCH-0.027-48.616-20.027Pass NVNTANT11-DH12480.00-1.655-59.775-21.655Pass NVNTANT11-DH1Hopping_HCH0.122-58.096-19.878Pass NVNTANT12-DH12402.00-0.040-47.539-20.040Pass NVNTANT12-DH1Hoppin g_LCH0.032-48.680-19.968Pass NVNTANT12-DH12480.00-1.677-60.479-21.677Pass NVNTANT12-DH1Hopping_HCH0.115-59.014-19.885Pass 1_Reference_Level_NVNT_ANT1_1-DH1_2402_00 2_Bandedge_NVNT_ANT1_1-DH1_2402_00 Page 21 of 40 1_Reference_Level_Hopping_NVNT_ANT1_1-DH1_Hopping 2_Band_Edge_(Hopping)_NVNT_ANT1_1-DH1_Hopping Page 22 of 40 1_Reference_Level_NVNT_ANT1_1-DH1_2480_00 2_Bandedge_NVNT_ANT1_1-DH1_2480_00 Page 23 of 40 1_Reference_Level_Hopping_NVNT_ANT1_1-DH1_Hopping 2_Band_Edge_(Hopping)_NVNT_ANT1_1-DH1_Hopping Page 24 of 40 1_Reference_Level_NVNT_ANT1_2-DH1_2402_00 2_Bandedge_NVNT_ANT1_2-DH1_2402_00 Page 25 of 40 1_Reference_Level_Hopping_NVNT_ANT1_2-DH1_Hopping 2_Band_Edge_(Hopping)_NVNT_ANT1_2-DH1_Hopping Page 26 of 40 1_Reference_Level_NVNT_ANT1_2-DH1_2480_00 2_Bandedge_NVNT_ANT1_2-D…

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ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26010424AE-1 TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage1of30 TESTREPORT Applicant:Shenzhenchengtaielectronicandtechnologyco.,LTD Address: 6thFloor,BuildingC,QinyuIndustrialZone,Sanwei,Sanwei Community,HangchengStreet,BaoanDistrict,Shenzhen,China Manufacturer:Shenzhenchengtaielectronicandtechnologyco.,LTD Address: 6thFloor,BuildingC,QinyuIndustrialZone,Sanwei,Sanwei Community,HangchengStreet,BaoanDistrict,Shenzhen,China ProductName:Bluetoothspeaker ModelNumber:TG-444 Trademark:/ FCCID:2A86Y-TG-444 TestDate:Nov.31,2025toJan.15,2026 DateofReport:Jan.15,2026 TestResult: ThisdevicedescribedabovehasbeentestedbyBKC,andthetest resultsshowthattheequipmentundertest(EUT)isincompliance withtheStandardrequirements.Anditisapplicableonlytothetested sampleidentifiedinthereport. TestProcedureUsed: Standards:FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10-2020+Cor1+2023 Preparedby(TestEngineer): StenHuang Reviewer(Supervisor): CaseyWang Approved(Manager): JerryLiao ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26010424AE-1 TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage2of30 TABLEOFCONTENT 1.GeneralInformation......................................................................................5 1.1.DescriptionofDevice(EUT).......................................................................................................................5 1.2.ChannelList..................................................................................................................................................5 1.3.Summaryoftestresult................................................................................................................................6 1.4.SpecialAccessoriesandAuxiliaryEquipment........................................................................................6 1.5.Testmode......................................................................................................................................................6 1.6.Testconfiguration.........................................................................................................................................7 1.7.BlockDiagram...............................................................................................................................................7 1.8.TestConditions.............................................................................................................................................7 1.9.MeasurementUncertainty(95%confidencelevels,k=2)......................................................................8 1.10.TestFacility..................................................................................................................................................8 1.11.TestEquipment...........................................................................................................................................9 2.Conductedemissionatthemainsterminalstest....................................11 2.1.Limit..............................................................................................................................................................11 2.2.TestSetup....................................................................................................................................................11 2.3.TestProcedure............................................................................................................................................11 2.4.TestResult..................................................................................................................................................12 3.RadiatedSpuriousEmissions...................................................................14 3.1.Limit..............................................................................................................................................................14 3.2.TestSetup....................................................................................................................................................15 3.3.TestProcedure............................................................................................................................................17 3.4.TestResult...................................................................................................................................................18 4.MaximumPeakOutputPower....................................................................23 4.1.Limit..............................................................................................................................................................23 4.2.TestSetup....................................................................................................................................................23 4.3.TestProcedure............................................................................................................................................23 4.4.TestResult...................................................................................................................................................23 5.-20dBBandwidthMeasurement...............................................................24 5.1.Limit..............................................................................................................................................................24 5.2.TestSetup....................................................................................................................................................24 5.3.TestProcedure............................................................................................................................................24 5.4.TestResult...................................................................................................................................................24 6.CarrierFrequencySeparationTe…

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FCCID:2A86Y-TG-444 TestPhotos