2A2OS-YSD66Soundbar

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ShenzhenYSDTechnologyCo.,Ltd Date:2021-07-22 To:FederalCommunicationsCommission FCCID:2A2OS-YSD66 ToWhomItMayConcern: ThisletteristoascertainthatShenzhenYSDTechnologyCo.,Ltd MODELNo.:YSD66 AASB1102W,AASB1101,SC-1421SB,SC-1422SBW,YSD18B,YSD52B, YSD23B,YSD71,YSD11,YSD06,YSD22,YSD66,YSD68,YSD15,YSD62, YSD88 HasbeentheunitsusedforconductingFCCcompliancetesting,theSDoCpartwill betestedbyShenzhenBCTCTestingCo.,Ltd. Ifyouhaveanyquestionorconcerns,pls.contactus. Sincerely, Client’ssignature： Client’sname/title：AlexLiu(Manager) Contactinformation/address:ShenzhenYSDTechnologyCo.,Ltd

ShenzhenYSDTechnologyCo.,Ltd 2021.07.22 EurofinsElectricalandElectronicTestingNA,Inc. 914W.PatapscoAvenue Baltimore,MD21230 USA RE:CONFIDENTIALITYREQUESTFOR EUTNAME:Soundbar Trademark:N/A MODEL:YSD66 AASB1102W,AASB1101,SC-1421SB,SC-1422SBW,YSD18B,YSD52B, YSD23B,YSD71,YSD11,YSD06,YSD22,YSD66,YSD68,YSD15,YSD62, YSD88 FCCID:2A2OS-YSD66 ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe -BlockDiagram -Schematics -OperationalDescription requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublic review. Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsmaybeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Client’ssignature: Client’sname/title:AlexLiu/Manager Contactinformation/address:201,Building3,FuhaiIndustrialZone,QiaotouCommunity,Fuyong FuhaiStreet,Bao'an,shenzhen,China.

ShenzhenYSDTechnologyCo.,Ltd 2021.07.22 EurofinsElectricalandElectronicTestingNA,Inc. 914W.PatapscoAvenue Baltimore,MD21230 USA RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenBCTCTestingCo.,Ltdtoactonourbehalfinall mattersrelatingtoapplicationforequipmentauthorization,includingthesigningofalldocuments relatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, Client’ssignature: Client’sname/title:AlexLiu/Manager Contactinformation/address:201,Building3,FuhaiIndustrialZone,QiaotouCommunity,Fuyong FuhaiStreet,Bao'an,shenzhen,China.

ShenzhenYSDTechnologyCo.,Ltd ModelDifference Productdescription:Soundbar Modelname:YSD66 AASB1102W,AASB1101,SC-1421SB,SC-1422SBW,YSD18B,YSD52B,YSD23B, YSD71,YSD11,YSD06,YSD22,YSD66,YSD68,YSD15,YSD62,YSD88 TradeName:N/A FCCID:2A2OS-YSD66 AllthemodelarethesamecircuitandRFmodule,exceptmodelnames. Regards Sincerely Client’ssignature: Client’sname/title:AlexLiu/Manager Contactinformation/address:201,Building3,FuhaiIndustrialZone,QiaotouCommunity, FuyongFuhaiStreet,Bao'an,shenzhen,China.

ExternalPhotos

Label&labellocation Soundbar FCCID:2A2OS-YSD66 Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowing twoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmay causeundesiredoperation.

InternalPhotos Antenna

FCC§15.247(i),§2.1091–RFExposure FCCID:2A2OS-YSD66 Appliedprocedures/limit AccordingtoFCC§15.247(i)and§1.1307(b)(1),systemsoperatingundertheprovisionsofthis sectionshallbeoperatedinamannerthatensuresthatthepublicisnotexposedtoradio frequencyenergylevelinexcessoftheCommission’sguidelines. LimitsforOccupational/ControlledExposure Frequency Range(MHz) ElectricField Strength(E) (V/m) MagneticField Strength(H) (A/m) PowerDensity(S) (mW/cm 2 ) AveragingTime |E| 2 ,|H| 2 orS (minutes) 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 Note:ƒisfrequencyinMHz *=Powerdensitylimitisapplicableatfrequenciesgreaterthan100MHz LimitsforGeneralPopulation/UncontrolledExposure Frequency Range(MHz) ElectricField Strength(E) (V/m) MagneticField Strength(H) (A/m) PowerDensity(S) (mW/cm 2 ) AveragingTime |E| 2 ,|H| 2 orS (minutes) 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 MPEPREDICTION PredicationofMPElimitatagivendistance,EquationfromOETBulletin65,Edition97-01 Where:S=powerdensity P=powerinputtoantenna G=powergainoftheantennainthedirectionofinterestrelativetoanisotropicradiator R=distancetothecenterofradiationoftheantenna,R=0.2m TESTRESULTS Tuneup Produce power Maximu mpeak output power (dBm) Output power to antenn a (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result BLE0±111.261(0dBi)0.000251Pass BT1±111.581(0dBi)0.000321Pass

No.：BCTC/RF-EMC-007Page: 1 of 42 Edition：A.3 TESTREPORT ShenzhenBCTCTestingCo.,Ltd. ReportNo.:BCTC2106280806-1E Applicant:ShenzhenYSDTechnologyCo.,Ltd. ProductName:Soundbar Model/Type reference: YSD66 TestedDate:2021-06-28to2021-07-23 IssuedDate:2021-07-23 ReportNo.:BCTC2106280806-1E No.：BCTC/RF-EMC-007Page: 2 of 42 Edition：A.3 FCCID:2A2OS-YSD66 Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp.Thisresult(s)showninthisreport referonlytothesample(s)tested.WithoutwrittenapprovalofShenzhenBCTCTestingCo.,Ltd,thisreport can’tbereproducedexceptinfull.Thetestedsample(s)andthesampleinformationareprovidedbythe client. ProductName: Soundbar Trademark:N/A Model/Typereference: YSD66 AASB1102W,AASB1101,SC-1421SB,SC-1422SBW, YSD18B,YSD52B,YSD23B,YSD71,YSD11,YSD06, YSD22,YSD66,YSD68,YSD15,YSD62,YSD88 PreparedFor:ShenzhenYSDTechnologyCo.,Ltd. Address: 201,Building3,FuhaiIndustrialZone,QiaotouCommunity, FuyongFuhaiStreet,Bao'an,shenzhen,China. Manufacturer:ShenzhenYSDTechnologyCo.,Ltd. Address: 201,Building3,FuhaiIndustrialZone,QiaotouCommunity, FuyongFuhaiStreet,Bao'an,shenzhen,China. PreparedBy: ShenzhenBCTCTestingCo.,Ltd. Address: 1-2/F.,BuildingB,PengzhouIndustrialPark,No.158,Fuyuan 1stRoad,Tangwei,FuhaiSubdistrict,Bao'anDistrict, Shenzhen,Guangdong,China SampleReceivedDate:2021-06-28 SampletestedDate:2021-06-28to2021-07-23 IssueDate:2021-07-23 ReportNo.:BCTC2106280806-1E TestStandards FCCPart15.247 ANSIC63.10-2013 TestResultsPASS Remark:Thisis BluetoothBLE radiotestreport. Testedby:Approvedby: KelseyTan/ProjectHandlerZeroZhou/Reviewer ReportNo.:BCTC2106280806-1E No.：BCTC/RF-EMC-007Page: 3 of 42 Edition：A.3 TABLEOFCONTENT TestReportDeclarationPage 1.VERSION ............................................................................................................................ 5 2.TESTSUMMARY .............................................................................................................. 6 3.MEASUREMENTUNCERTAINTY ................................................................................. 7 4.PRODUCTINFORMATIONANDTESTSETUP ......................................................... 8 4.1ProductInformation ........................................................................................................... 8 4.2TestSetupConfiguration ................................................................................................. 8 4.3SupportEquipment ........................................................................................................... 9 4.4ChannelList ....................................................................................................................... 9 4.5TestMode ......................................................................................................................... 10 4.6Tableofparametersoftextsoftwaresetting ............................................................... 10 5.TESTFACILITYANDTESTINSTRUMENTUSED .................................................. 11 5.1TestFacility ...................................................................................................................... 11 5.2TestInstrumentUsed ..................................................................................................... 11 6.CONDUCTEDEMISSIONS ........................................................................................... 13 6.1BlockDiagramOfTestSetup ........................................................................................ 13 6.2Limit ................................................................................................................................... 13 6.3Testprocedure ................................................................................................................. 13 6.4EUToperatingConditions .............................................................................................. 13 6.5TestResult ....................................................................................................................... 14 7.RADIATEDEMISSIONS ................................................................................................ 16 7.1BlockDiagramOfTestSetup ........................................................................................ 16 7.2Limit ................................................................................................................................... 17 7.3Testprocedure ................................................................................................................. 18 7.4EUToperatingConditions .............................................................................................. 19 7.5TestResult ....................................................................................................................... 20 8.RADIATEDBANDEMISSIONMEASUREMENTANDRESTRICTED BANDSOFOPERATION ....................................................................................................... 24 8.1BlockDiagramOfTestSetup ........................................................................................ 24 8.2Limit ................................................................................................................................... 24 8.3Testprocedure ................................................................................................................. 25 8.4EUToperatingConditions .............................................................................................. 25 8.5TestResult ....................................................................................................................... 26 9.POWERSPECTRALDENSITYTEST ........................................................................ 27 9.1BlockDiagramOfTestSetup ........................................................................................ 27 9.2Limit ......................................................................................................................…

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ReportNo.:BCTC2106280806-2E No.：BCTC/RF-EMC-007Page: 66 of 68 Edition：A.3 17.EUTTESTSETUPPHOTOGRAPHS Conductedemissions ReportNo.:BCTC2106280806-2E No.：BCTC/RF-EMC-007Page: 67 of 68 Edition：A.3 RadiatedMeasurementPhotos