2AMD8-V40039WNTrue Wireless Earphones

&Microphone 2-3 V40039WN The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

SCS-F18:ProjectandProductCertificationRepresentativeAuthorizationLetterPage1of2Rev6.0 775MontagueExpressway Milpitas,CA95035 Tel:408-526-1188 Fax:408-526-1088 Email: [email protected] ProjectandProduct Certification Representative AuthorizationLetter ReasonforAmendment(current/obsolete) RevisionHistory ApprovedDate FromTo InitialRelease(obsolete)1.01.0Nov-14-2006 Revisedwording(obsolete)1.02.0Sept–25-2007 Updatedcompanytemplate(obsolete)2.03.0Jan-31-2012 Updatedletterinformation(obsolete)3.04.0May-23-2014 AddedFCCIDfield(obsolete)4.05.0Sep-16-2014 Updatedcompanyname&logo(current)5.06.0Jun-27-2018 SCS-F18:ProjectandProductCertificationRepresentativeAuthorizationLetterPage2of2Rev6.0 ShenzhenGroundEnterprisesCo.,Ltd (2020-07-31) To:BVCPS,INC. 775MontagueExpressway, Milpitas,CA95035 USA DearSir/Madam, Re:ProductCertificationRepresentativeAuthorizationLetter We,_____ShenzhenGroundEnterprisesCo.,Ltd.___hereby authorizeBVCPS,Inc.toactasaCertificationBodyfor certifyingforthefollowingproject(s): Product::TrueWirelessEarphones M/N:V40039WN,V40039WN-WHT-STK,V40039WN-BLK-STK FCCID:2AMD8-V40039WN Sincerely, JamesCao ShenzhenGroundEnterprisesCo.,Ltd Room607,BuildingF,MingYueHuaDu,GongheIndustrialRd,Xixiang,BaoAn District,Shenzhen,China

SCS-F19:ConfidentialityRequestLetterPage 1 of 2 Rev6.0 775MontagueExpressway Milpitas,CA95035 Tel:408-526-1188 Fax:408-526-1088 Email: [email protected] m Confidentiality RequestLetter ReasonforAmendment(current/obsolete) RevisionHistory ApprovedDate FromTo InitialRelease(obsolete)1.01.0Nov-14-2006 AddingCFR2.459(obsolete)1.02.0August–11-2008 Updatedcompanytemplate&Addedtext box(obsolete) 2.03.0Jan-31-2012 AddedICconfidentialityletterform (obsolete) 3.04.0March-26-2015 CorrectionstoSTCform.Addedreference toKDB(obsolete) 4.05.0Nov-19-2015 Updatedcompanylogo(current)5.06.0Jun-26-2019 SCS-F19:ConfidentialityRequestLetterPage 2 of 2 Rev6.0 ShenzhenGroundEnterprisesCo.,Ltd (2020-07-31) To: FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD Subject:PermanentConfidentialityRequestforFCCID:2AMD8-V40039WN Pursuanttosections0.457and0.459ofCFR47,werespectfullyrequestpermanent confidentialtreatmentofthefollowingExhibitsaccompanyingthisapplicationas: -BlockDiagram -Schematics -OperationalDescription Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsmaybeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. Theapplicantunderstandsthatdisclosureofthisapplicationandallaccompanying documentationwillnotbemadebeforethedateoftheGrantforthisapplication. Sincerely, JamesCao ShenzhenGroundEnterprisesCo.,Ltd Room607,BuildingF,MingYueHuaDu,GongheIndustrialRd,Xixiang,BaoAnDistrict, Shenzhen,China

ShenzhenGroundEnterprisesCo.,Ltd Declarationonmodeldifference Wetheundersignedherebyconfirmthatthesemodelsareidentical,andallmodelshavethe sameRFmoduleandantenna,PCBlayout,schematicsandcomponent.Onlythemodelortheshell coloraredifferentisdifferent.TheV40039WNandV40039WN-WHT-STKarewhite,The V40039WN-BLK-STKisblack. ProductionnameTrademarkFCCIDModelno. TrueWireless Earphones VIVITAR, GROUND 2AMD8-V40039WNV40039WN, V40039WN-WHT-STK, V40039WN-BLK-STK Sincerely, JamesCao ShenzhenGroundEnterprisesCo.,Ltd Room607,BuildingF,MingYueHuaDu,GongheIndustrialRd,Xixiang,BaoAnDistrict, Shenzhen,China

Label: Labellocation:

ANTENNA

RFEXPOSUREEVALUATION EUTSpecification EUTTrueWirelessEarphones ModelNumberV40039WN,V40039WN-WHT-STK,V40039WN-BLK-STK FCCID2AMD8-V40039WN Antennagain(Max)0dBi OperationFrequency2402-2480MHz InputRatingDC3.7VBattery ClassificationPer StipulatedTestStandard §15.247(i),§2.1093 KindofDevice:BluetoothVer.5.0 ModulationGFSK,π/4-DQPSK Max.outputpower-4.51dBm(0.0003W) TestRequirement: Accordingto§15.247(i)and§1.1307(b)(1),systemsoperatingunderthe provisionsofthissectionshallbeoperatedinamannerthatensuresthatthe publicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualityforTCBapproval. OneantennaisavailablefortheEUT.Theminimumseparationdistanceis 5mm. BTDSS: AccordingtoKDB447498,nostand-alonerequiredforBTantenna,andno simultaneousSARmeasurementisrequired. Signature: AlanHe Date:2020-07-31 Transmit Frequency (MHz) Mode Measured Power (dBm) Tuneup Power (dBm) Maxtuneup power(dBm) Calculation Result 1-g SAR 2402GFSK-5.47-5±1-40.1233983 2441GFSK-5.21-5±1-40.1243963 2480GFSK-5.26-5±1-40.1253863 2402 Π/4-DQ PSK -4.75-5±1-40.1233983 2441 Π/4-DQ PSK -4.58-4±1-30.1566123 2480 Π/4-DQ PSK -4.51-4±1-30.1578583

ReportNo.:EA2007616F01001 1 of 71 TRFNo.FCCPart15.247/AVer.1.0 ELECTROMAGNETICEMISSIONSCOMPLIANCEREPORT INTENTIONALRADIATORCERTIFICATIONTO FCCPART15SUBPARTCREQUIREMENT OF TrueWirelessEarphones ModelNo.:V40039WN,V40039WN-WHT-STK,V40039WN-BLK-STK Trademark:VIVITAR,GROUND FCCID:2AMD8-V40039WN ReportNo.:EA2007616F01001 IssueDate:July31,2020 Preparedfor ShenzhenGroundEnterprisesCo.,Ltd Room607,BuildingF,MingYueHuaDu,GongheIndustrialRd,Xixiang,Bao AnDistrict,Shenzhen,China Preparedby DongGuanAnciElectronicTechnologyCo.,Ltd. 1-2Floor,BuildingA,No.11,Headquarters2Road,Songshan,LakeHi-tech IndustrialDevelopmentZone,DongguanCity,GuangdongPr.,China. Thisreportshallnotbereproduced,exceptinfull,withoutthewrittenapprovalof DongGuanAnciElectronicTechnologyCo.,Ltd. ReportNo.:EA2007616F01001 2 of 71 TRFNo.:FCC15.209/ARev.1.0 VERIFICATIONOFCOMPLIANCE Applicant:ShenzhenGroundEnterprisesCo.,Ltd Room607,BuildingF,MingYueHuaDu,GongheIndustrialRd, Xixiang,BaoAnDistrict,Shenzhen,China Manufacturer:ShenzhenGroundEnterprisesCo.,Ltd Room607,BuildingF,MingYueHuaDu,GongheIndustrialRd, Xixiang,BaoAnDistrict,Shenzhen,China ProductDescription:TrueWirelessEarphones TradeMark:VIVITAR,GROUND ModelNumber: V40039WN,V40039WN-WHT-STK,V40039WN-BLK-STK (Allmodelsarethesameexceptthemodelortheshellcolorare different,wechoosemodel:V40039WNforalltests) Weherebycertifythat: TheaboveequipmentwastestedbyDongGuanAnciElectronicTechnologyCo., Ltd.Thetestdata,dataevaluation,testprocedures,andequipmentconfigurations showninthisreportweremadeinaccordancewiththeproceduresgiveninANSI C63.10-2013andtheenergyemittedbythesampleEUTtestedasdescribedinthis reportisincompliancewithconductedandradiatedemissionlimitsofFCCRulesPart 15.247(2019). DateofTest:July28,2020toJuly30,2020 Preparedby: TomasYang/Supervisor Reviewer& AuthorizedSigner: AlanHe/Manager ReportNo.:EA2007616F01001 3 of 71 TRFNo.:FCC15.209/ARev.1.0 ModifiedInformation VersionSummaryRevisionDateReportNo. Ver.1.0OriginalReport/EA2007616F01001 ReportNo.:EA2007616F01001 4 of 71 TRFNo.:FCC15.209/ARev.1.0 TableofContents 1.GENERALINFORMATION..........................................................................................................6 1.1PRODUCTDESCRIPTION..............................................................................................................................6 1.2TESTMETHODOLOGY...................................................................................................................................6 1.3TESTFACILITY..............................................................................................................................................7 2.SYSTEMTESTCONFIGURATION...............................................................................................8 2.1EUTCONFIGURATION...................................................................................................................................8 2.2EUTEXERCISE......................................................................................................................................8 2.3TESTPROCEDURE......................................................................................................................................8 2.4CONFIGURATIONOFTESTEDSYSTEM.........................................................................................................9 3.SUMMARYOFTESTRESULTS.................................................................................................10 4.DESCRIPTIONOFTESTMODES...............................................................................................11 5.TESTSYSTEMUNCERTAINTY..................................................................................................12 6.CONDUCTEDEMISSIONSTEST................................................................................................13 6.1MEASUREMENTPROCEDURE:.....................................................................................................................13 6.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION)..........................................................................13 6.3MEASUREMENTEQUIPMENTUSED:...........................................................................................................13 6.4MEASUREMENTRESULT:...........................................................................................................................14 7.RADIATEDEMISSIONTEST.......................................................................................................15 7.1MEASUREMENTPROCEDURE......................................................................................................................15 7.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION)...........................................................................17 7.3MEASUREMENTEQUIPMENTUSED:..........................................................................................................18 7..4RADIATEDEMISSIONLIMIT.......................................................................................................................19 7.5MEASUREMENTRESULT..........................................................................................................................20 7.5RADIATEDMEASUREMENTPHOTOS:.........................................................................................................27 8.CHANNELSEPARATIONTEST..................................................................................................28 8.1MEASUREMENTPROCEDURE......................................................................................................................28 8.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION)...........................................................................28 8.3MEASUREMENTEQUIPMENTUSED:..........................................................................................................28 8.4MEASUREMENTRESULTS:........................................................................................................…

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