2ALNA-BTS50Wireless Home Speaker

C5266091_X8_Ed.1 1/1 LetterofAuthorization ShenzhenThousandshoresTechnologyCo.,Ltd. Company:ShenzhenThousandshoresTechnologyCo.,Ltd. Address:5/F,ChuangxinBuilding,Seven-starCreative Square,No.2NorthAlley,Chuangye2ndRoad,Bao'anDis 28th,ShenZhen,China ProductName:WirelessHomeSpeaker ModelNumber:BTS50 FCCIdentifier:2ALNA-BTS50 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:CatherineLuDate:2020-11-19 Title:Testengineer Signatureofapplicant:

C5266091_X10_Ed.2 1/1 ShenzhenThousandshoresTechnologyCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2020-11-19 Subject:RequestforConfidentiality FCCID:2ALNA-BTS50 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 abovearewithheldfrompublicviewforaperiodofdaysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name:CatherineLu Title:Testengineer

Model: BTS50

ANT Model: BTS50

ReportNo.:PTC20092504301E-FC02 Page 1 of 7 FCCTESTREPORT FCCID:2ALNA-BTS50 Product: WirelessHomeSpeaker ModelName: BTS50 Brand : Tribit ReportNo.: PTC20092504301E-FC01 Preparedfor ShenzhenThousandshoresTechnologyCo.,Ltd. 5/F,ChuangxinBuilding,Seven-starCreativeSquare,No.2NorthAlley,Chuangye2ndRoad, Bao'anDis28th,ShenZhen,China Preparedby PreciseTesting&Certification(Guangdong)Co.,Ltd. Building1,No.6,TongxinRoad,DongchengStreet,Dongguan,Guangdong,China. ReportNo.:PTC20092504301E-FC02 Page 2 of 7 TESTRESULTCERTIFICATION Applicant’sname:ShenzhenThousandshoresTechnologyCo.,Ltd. Address: 5/F,ChuangxinBuilding,Seven-starCreativeSquare,No.2North Alley,Chuangye2ndRoad,Bao'anDis28th,ShenZhen,China Manufacture'sname:ShenzhenThousandshoresTechnologyCo.,Ltd. Address: 5/F,ChuangxinBuilding,Seven-starCreativeSquare,No.2North Alley,Chuangye2ndRoad,Bao'anDis28th,ShenZhen,China Productname:WirelessHomeSpeaker Modelname: BTS50 TestprocedureKDB447498D01GeneralRFExposureGuidancev06 TestDate:September30,2020toNovember10,2020 DateofIssue:November10,2020 TestResult:Pass ThisdevicedescribedabovehasbeentestedbyPTS,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlyto thetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofPTS,thisdocument maybealteredorrevisedbyPTS,personalonly,andshallbenotedintherevisionofthedocument. TestEngineer: LeoYang/Engineer TechnicalManager: ChrisDu/Manager ReportNo.:PTC20092504301E-FC02 Page 3 of 7 Contents Page 2TESTSUMMARY................................................................................................................................................4 3GENERALINFORMATION...............................................................................................................................5 3.1GENERALDESCRIPTIONOFE.U.T..........................................................................................................5 4RFEXPOSURE...................................................................................................................................................6 4.1REQUIREMENTS........................................................................................................................................6 4.2THEPROCEDURES/LIMIT.........................................................................................................................6 4.3MPECALCULATIONMETHOD..................................................................................................................7 4.4TESTRESULT............................................................................................................................................7 ReportNo.:PTC20092504301E-FC02 Page 4 of 7 2TestSummary TestItemsTestRequirementResult MaximumPermissibleExposure (ExposureofHumanstoRFFields) 1.1307(b)(1)PASS Remark: N/A:NotApplicable ReportNo.:PTC20092504301E-FC02 Page 5 of 7 3GeneralInformation 3.1GeneralDescriptionofE.U.T. ProductName:WirelessHomeSpeaker ModelNumber:BTS50 Specification :Bluetooth5.0 Operatingfrequency:2402-2480MHz Modulation:GFSK,π/4DQPSK,8DPSK NumberofChannel:79 Antennainstallation:PCBAntenna AntennaGain:2dBi Powersupply: Input:100-240V~50/60Hz1.2A Output:DC18V2.5A HardwareVersion:N/A SoftwareVersion:N/A ReportNo.:PTC20092504301E-FC02 Page 6 of 7 4RFExposure TestRequirement :FCCPart1.1307(b)(1) EvaluationMethod :FCCPart2.1091 4.1Requirements Systemsoperatingundertheprovisionsofthissectionshallbeoperatedinamannerthatensuresthat thepublicisnotexposedtoradiofrequencyenergylevelsinexcesslimitformaximumpermissible exposure.Inaccordancewith47CFRFCCPart2SubpartJ,section2.1091thisdevicehasbeen definedasamobiledevicewherebyadistanceof0.2mnormallycanbemaintainedbetweentheuser andthedevice. 4.2Theprocedures/limit (A)LimitsforOccupational/ControlledExposure FrequencyRangeElectricFieldMagneticFieldPowerDensity(S)AveragingTime 0.3-3.06141.63(100)*6 3.0-301842/f4.89/f(900/f)*6 30-30061.40.1631.06 300-1500F/3006 1500-100,00056 (B)LimitsforGeneralPopulation/UncontrolledExposure FrequencyRangeElectricFieldMagneticFieldPowerDensity(S)AveragingTime 0.3-1.346141.63(100)*30 1.34-30824/f2.19/f(180/f)*30 30-30027.50.0730.230 300-1500F/150030 1500-100,0001.030 Note:f=frequencyinMHz;*Plane-waveequivalentpowerdensity ReportNo.:PTC20092504301E-FC02 Page 7 of 7 4.3MPECalculationMethod E(V/m) ＝ d GP30 PowerDensity:Pd(W/m²) ＝ 377 2 E E ＝ Electricfield(V/m) P＝PeakRFoutputpower(W) G ＝ EUTAntennanumericgain(numeric) d＝Separationdistancebetweenradiatorandhumanbody(m) Theformulacanbechangedto Pd ＝ 2 377 30 d GP   FromthepeakEUTRFoutputpower,theminimummobileseparationdistance,d=0.2m,aswellas thegainoftheusedantenna,theRFpowerdensitycanbeobtained 4.4TestResult Item Antenna Gain (numeric) Max.Peak OutputPower (dBm) PeakOutput Power(mW) PowerDensity (mW/cm2) LimitofPower Density (mW/cm2) Result BT1.56-0.4660.900.00031Pass ******THEENDREPORT******

ReportNo.:PTC20092504301E-FC01 Page 1 of 70 FCCTESTREPORT FCCID:2ALNA-BTS50 ProductName:WirelessHomeSpeaker ModelName:BTS50 BrandName:Tribit ReportNo.:PTC20092504301E-FC01 Preparedfor ShenzhenThousandshoresTechnologyCo.,Ltd. 5/F,ChuangxinBuilding,Seven-starCreativeSquare,No.2NorthAlley,Chuangye2ndRoad, Bao'anDis28th,ShenZhen,China Preparedby PreciseTesting&CertificationCo.,Ltd. Building1,No.6,TongxinRoad,DongchengStreet,Dongguan,Guangdong,China. ReportNo.:PTC20092504301E-FC01 Page 2 of 70 1TESTRESULTCERTIFICATION Applicant’sname:ShenzhenThousandshoresTechnologyCo.,Ltd. Address: 5/F,ChuangxinBuilding,Seven-starCreativeSquare,No.2North Alley,Chuangye2ndRoad,Bao'anDis28th,ShenZhen,China Manufacture'sname:ShenzhenThousandshoresTechnologyCo.,Ltd. Address: 5/F,ChuangxinBuilding,Seven-starCreativeSquare,No.2North Alley,Chuangye2ndRoad,Bao'anDis28th,ShenZhen,China Productname:WirelessHomeSpeaker Modelname: BTS50 Standards:FCCCFR47Part15Section15.247 Testprocedure:ANSIC63.10:2013 TestDate:September30,2020toNovember10,2020 DateofIssue:November10,2020 TestResult:Pass ThisdevicedescribedabovehasbeentestedbyPTC,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicable onlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofPTC,this documentmaybealteredorrevisedbyPTC,personalonly,andshallbenotedintherevision ofthedocument. TestEngineer: LeoYang/Engineer TechnicalManager: ChrisDu/Manager ReportNo.:PTC20092504301E-FC01 Page 3 of 70 Contents Page 1TESTRESULTCERTIFICATION.....................................................................................................................2 2TESTSUMMARY...........................................................................................................................................................5 3TESTFACILITY..............................................................................................................................................................6 4GENERALINFORMATION..........................................................................................................................................7 4.1GENERALDESCRIPTIONOFE.U.T.....................................................................................................................7 4.2TESTMODE..........................................................................................................................................................8 5EQUIPMENTDURINGTEST.....................................................................................................................................10 5.1EQUIPMENTSLIST..............................................................................................................................................10 5.2MEASUREMENTUNCERTAINTY..........................................................................................................................12 5.3DESCRIPTIONOFSUPPORTUNITS....................................................................................................................13 6CONDUCTEDEMISSION...........................................................................................................................................14 6.1E.U.T.OPERATION............................................................................................................................................14 6.2EUTSETUP........................................................................................................................................................14 6.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION)..................................................................................15 6.4MEASUREMENTPROCEDURE:...........................................................................................................................15 6.5CONDUCTEDEMISSIONLIMIT............................................................................................................................15 6.6MEASUREMENTDESCRIPTION...........................................................................................................................15 6.7CONDUCTEDEMISSIONTESTRESULT..............................................................................................................15 7RADIATEDSPURIOUSEMISSIONS.......................................................................................................................18 7.1EUTOPERATION...............................................................................................................................................18 7.2TESTSETUP.......................................................................................................................................................19 7.3SPECTRUMANALYZERSETUP...........................................................................................................................20 7.4TESTPROCEDURE.............................................................................................................................................21 7.5SUMMARYOFTESTRESULTS...........................................................................................................................22 8MAXIMUMPEAKOUTPUTPOWERTEST............................................................................................................29 8.1TESTSTANDARDANDLIMIT..............................................................................................................................29 8.2TESTSETUP.......................................................................................................................................................29 8.3TESTPROCEDURE.............................................................................................................................................29 8.4TESTDATA...............................................................................................…

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Conducted Emissions Radiated Spurious Emissions From 30MHz-1000MHz Model: BTS50 Above1GHz