2BUYV-SLPHPS1Bluetooth sleep headphones

DongguanYibangTechnologyCo.,Ltd. Address：No.7,ZhifuSecondLane,Lingxia,LiaobuTown,DongguanCity,Guangdong Province Date:2026-02-28 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2BUYV-SLPHPS1 FRN:0038090866 (“DongguanYibangTechnologyCo.,Ltd.”)certifiesthat,asofthedateofthefilingofthe application,GOLDENVICTORYINTERNATIONALTRADINGCOLTDisourdesignatedU.S. agentforserviceofprocessfortheabovereferencedFCCID.(“DongguanYibang TechnologyCo.,Ltd.”)acceptstomaintainanagentfornolessthanoneyearafterthe granteehasterminatedallmarketingandimportationortheconclusionofanyCommission- relatedproceedinginvolvingtheequipment. GOLDENVICTORYINTERNATIONALTRADINGCOLTDaccepts,asofthedateofthefiling oftheapplication,theobligationofthedesignatedU.S.agentforserviceofprocessforthe abovereferencedFCCID. DesignatedU.S.AgentInformation: Name:GOLDENVICTORYINTERNATIONALTRADINGCOLTD Address:11016THSTREETSUITE1400DENVER,CO80202UnitedStates FRN：0036377570 ContactPerson:LeonHowar Tel.:(337)255-0461 Email:[email protected] Sincerely, Signedonbehalfof（DongguanYibang TechnologyCo.,Ltd.） SignedonbehalfofGOLDENVICTORY INTERNATIONALTRADINGCOLTD Name:JohnQiaoName:LeonHowar Title:CEOTitle:Manager Date:2026-02-28Date:2026-02-28

Rev1/26/2023 (DongguanYibangTechnologyCo.,Ltd.) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:3-1-2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BUYV-SLPHPS1 (“DongguanYibangTechnologyCo.,Ltd.”)certifiesthattheequipmentforwhichauthorizationissought isnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. (“DongguanYibangTechnologyCo.,Ltd.”)certifiesthattheequipmentforwhichauthorizationissought doesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.orany ofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature): (Applicantprintedname):JohnQiao Rev1/26/2023 (DongguanYibangTechnologyCo.,Ltd.) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:3-1-2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BUYV-SLPHPS1 (“DongguanYibangTechnologyCo.,Ltd.”)certifiesthat,asofthedateofthefilingoftheapplication, DongguanYibangTechnologyCo.,Ltd.isnotidentifiedontheCoveredList(asaspecificallynamedentity oranyofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature): (Applicantprintedname):JohnQiao

Inverted F Antenna Specification Address No. 333, Kexing Road, Xiangzhou District, Zhuhai City Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) 15.2mm Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

DongguanYibangTechnologyCo.,Ltd. Date:March3,2026 ProductModelNumber:K4081-MAIN-16F FCCID ： 2BUYV-SLPHPS1 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:CEO Email:[email protected] Telephone:13316661118 Onbehalfof:DongguanYibangTechnologyCo.,Ltd.

DongguanYibangTechnologyCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:February28,2026 Subject;RequestforConfidentiality FCCID:2BUYV-SLPHPS1 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:JohnQiao Title:CEO

FCCID:2BUYV-SLPHPS1 EUTPHOTOSExternalPhotos FCCID:2BUYV-SLPHPS1 FCCID:2BUYV-SLPHPS1 FCCID:2BUYV-SLPHPS1 ※※※※※ENDOFREPORT※※※※※

Size:5mmX20mm FCCID：2BUYV-SLPHPS1

FCCID:2BUYV-SLPHPS1 EUTPHOTOSInternalPhotos FCCID:2BUYV-SLPHPS1 FCCID:2BUYV-SLPHPS1 FCCID:2BUYV-SLPHPS1 FCCID:2BUYV-SLPHPS1 ※※※※※ENDOFREPORT※※※※※ ANT

FCCID:2BUYV-SLPHPS1 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSAR testexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculationThe resultisroundedtoonedecimalplaceforcomparison Here, ForBluetooth Mode Max Power (dBm) Tune-up power (dBm) Tune-up power (mW) Frequency (MHz) Min. Distance (mm) Calc. thresholds limit BT4.454±13.16244150.9873.0 BLE3.343±12.51244050.7843.0 SoaSARtestisnotrequired

ProjectNo.:ZHT-260210101W01-2 Page 1 of 62 FCCTESTREPORT FCCID:2BUYV-SLPHPS1 ApplicantName...............:DongguanYibangTechnologyCo.,Ltd. Address............................:No.7,ZhifuSecondLane,Lingxia,LiaobuTown,DongguanCity, GuangdongProvince ManufacturerName.........:DongguanYibangTechnologyCo.,Ltd. Address............................:No.7,ZhifuSecondLane,Lingxia,LiaobuTown,DongguanCity, GuangdongProvince Product............................:Bluetoothsleepheadphones Model(s)...........................:K4081-MAIN-16F AdditionalModel(s)..........:/ Trademark........................:tahoesleep ModelDifference..............:/ Preparedby......................:GuangdongZhonghanTestingTechnologyCo.,Ltd. Address............................:Room104/201,Building1,YibaolaiIndustrialPark,Qiaotou,Fuhai Subdistrict,Bao'anDistrict,Shenzhen,Guangdong,China DateofReceipt................:Feb.10,2026 DateofTest(s)..................:Feb.10,2026-Feb.26,2026 DateofIssue....................:Feb.26,2026 TestRequested................:Selecttest(s)asrequestedbytheclient. TestStandard(s)..............:FCCCFRTitle47Part15SubpartCSection15.247 Testprocedure................:KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10-2020 Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. Preparedby:Reviewedby:Approvedby: KimiLu/EngineerBaretWu/DirectorLeviLee/Manager Note:Theresultsshowninthistestreportreferonlytothesample(s)testedunlessotherwisestated.Thistest reportshallnotbereproducedexceptinfull,withoutpriorwrittenapprovalofZHT.Thisdocumentmaybe alteredorrevisedbyZHT,personnelonly,andshallbenotedintherevisionofthedocument. ProjectNo.:ZHT-260210101W01-2 Page 2 of 62 TableofContentsPage 1.SUMMARYOFTESTRESULTS...............................................................................4 2.GENERALINFORMATION........................................................................................5 2.1GENERALDESCRIPTIONOFEUT.................................................................................5 2.2DESCRIPTIONOFTESTMODES....................................................................................6 2.3TESTSETUPCONFIGURATION......................................................................................7 2.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)........................................7 3.TESTFACILITYANDTESTINSTRUMENTUSED...................................................8 3.1TESTFACILITY.................................................................................................................8 3.2EQUIPMENTSLISTFORALLTESTITEMS...................................................................8 3.3TESTINGSOFTWARE......................................................................................................9 3.4MEASUREMENTUNCERTAINTY..................................................................................10 4.EMCEMISSIONTEST.............................................................................................11 4.1CONDUCTEDEMISSIONMEASUREMENT..................................................................11 4.1.1POWERLINECONDUCTEDEMISSIONLimits...................................................11 4.1.2TESTPROCEDURE................................................................................................11 4.1.3DEVIATIONFROMTESTSTANDARD..................................................................11 4.1.4TESTSETUP...........................................................................................................12 4.1.5EUTOPERATINGCONDITIONS...........................................................................12 4.1.6TESTRESULTS......................................................................................................13 4.2RADIATEDEMISSIONMEASUREMENT......................................................................15 4.2.1RADIATEDEMISSIONLIMITS...............................................................................15 4.2.2TESTPROCEDURE...............................................................................................16 4.2.3DEVIATIONFROMTESTSTANDARD..................................................................16 4.2.4TESTSETUP...........................................................................................................16 4.2.5EUTOPERATINGCONDITIONS...........................................................................17 5.RADIATEDBANDEMISSIONMEASUREMENT....................................................23 5.1TESTREQUIREMENT:..............................................................................................23 5.2TESTPROCEDURE..................................................................................................23 5.3DEVIATIONFROMTESTSTANDARD.....................................................................23 5.4TESTSETUP..............................................................................................................24 5.5EUTOPERATINGCONDITIONS..............................................................................24 5.6TESTRESULT...........................................................................................................25 6.POWERSPECTRALDENSITYTEST.....................................................................26 6.1APPLIEDPROCEDURES/LIMIT.............................................................................26 ProjectNo.:ZHT-260210101W01-2 Page 3 of 62 TableofContents Page 6.2TESTPROCEDURE..................................................................................................26 6.3DEVIATIONFROMSTANDARD...............................................................................26 6.4TESTSETUP..............................................................................................................26 6.5EUTOPERATIONCONDITIONS..............................................................................26 6.6TESTRESULTS.................................................................................…

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FCCID:2BUYV-SLPHPS1 EUTTESTPHOTOS FCCID:2BUYV-SLPHPS1 ※※※※※ENDOFREPORT※※※※※