2BUKE-YD606Bluetooth Earphones

FCC Caution: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. BLUETOOTH EARPHONES BLUETOOTH EARPHONES

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BUKE-YD606 YD606，OHR711，YD668，OHR306 We, Applicant CompanyName:GuraoQuemingElectronicsFactory, ChaoyangDistrict,ShantouCity Address:IntersectionofXianboGuRongRoadand ZhongyingRoad,GuraoTown,Chaoyang District,ShantouCity Phone:N/A certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-4-3 SignatureDate PrintedNameofSignee:XiaojieLiu Company:GuraoQuemingElectronics Factory,ChaoyangDistrict,ShantouCity Phone:+8613790880762 Email:[email protected] Address:IntersectionofXianboGuRong RoadandZhongyingRoad,GuraoTown, ChaoyangDistrict,ShantouCity Fax:N/A

GuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCity IntersectionofXianboGuRongRoadandZhongyingRoad,GuraoTown,ChaoyangDistrict, ShantouCity Date:2026-4-3 FCCID:2BUKE-YD606 ModelNumber:YD606，OHR711，YD668，OHR306 To:FederalCommunicationCommission AuthorizationandEvaluationDivision7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We,GuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCityherebydeclare thatourproduct(BluetoothEarphones)ModelNumber:YD606，OHR711，YD668， OHR306electricalidentical,theSchematic,PCBlayout,structureandsoftwarearesame, thedifferencebetweendifferentmodelsisthatinthisapplication,duetodifferentsales channelsanddifferentmodelnames. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehave mybestattention. Sincerely, (Signed) Name/Title:XiaojieLiu/Manager Company:GuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCity Address:IntersectionofXianboGuRongRoadandZhongyingRoad,GuraoTown, ChaoyangDistrict,ShantouCity Phone:+8613790880762 FaxNumber:N/A E-Mail:[email protected]

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2BUKE-YD606 YD606，OHR711，YD668，OHR306 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare: theOperationalDescription  theBlockDiagram  theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-4-3 SignatureDate PrintedNameofSignee/Title:XiaojieLiu/Manager Company:GuraoQuemingElectronicsFactory,ChaoyangDistrict, ShantouCity Address:IntersectionofXianboGuRongRoadandZhongying Road,GuraoTown,ChaoyangDistrict,ShantouCity Phone:+8613790880762 Fax:-- Email:[email protected]

ReportNo.:CISRR26032423301 Page 61 of 64 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR26032423301 Page 62 of 64

Label Size:30mm*16mm BluetoothEarphones ModelName:YD606 FCCID:2BUKE-YD606 LabelLocation

ReportNo.:CISRR26032423301 Page 63 of 64 9.2.InternalPhotos ReportNo.:CISRR26032423301 Page 64 of 64 ------Endofthereport----- ANT

ReportNo.:CISRR26032423302 Reporttemplateversion:CISE-TR-001-A0Page:1of6 TESTREPORT RFExposureEvaluation ReportNo.: CISRR26032423302 ProjectNo.: CISR260324233 FCCID:2BUKE-YD606 Applicant:GuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCity Address: IntersectionofXianboGuRongRoadandZhongyingRoad,GuraoTown, ChaoyangDistrict,ShantouCity Manufacturer: GuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCity Address: IntersectionofXianboGuRongRoadandZhongyingRoad,GuraoTown, ChaoyangDistrict,ShantouCity ProductName: BluetoothEarphones TradeMark:- Model/Typereference:YD606 ListedModel(s):OHR711,YD668,OHR306 Standard:47CFRPart2.1093 Issuedate:April1,2026 Testresult:Complied Reviewedby:MorganTan Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26032423302 Reporttemplateversion:CISE-TR-001-A0Page:2of6 Contents 1.APPLICABLESTANDARD..............................................................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.RADIOSPECIFICATIONDESCRIPTION........................................................................................................4 4.SIMULTANEOUSTRANSMISSIONANALYSIS.............................................................................................4 5.TESTRESULT.................................................................................................................................................5 5.1.STANDALONETRANSMISSION.................................................................................................................5 5.2.SIMULTANEOUSTRANSMISSION.............................................................................................................6 ReportNo.:CISRR26032423302 Reporttemplateversion:CISE-TR-001-A0Page:3of6 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–2019:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00April1,2026Original ReportNo.:CISRR26032423302 Reporttemplateversion:CISE-TR-001-A0Page:4of6 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThesedevicesuseasingletransmittermoduleandantennaforbothBT,BTcannottransmitsimultaneously. ReportNo.:CISRR26032423302 Reporttemplateversion:CISE-TR-001-A0Page:5of6 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up EIRP #4 (dBm) Minimum distance (mm) Evaluated value LimitResult Bluetooth2.4023.86-0.63.264.005.000.77863.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26032423302 Reporttemplateversion:CISE-TR-001-A0Page:6of6 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

Antennadatasheet manufacturerJinluPrecisionElectronics(Shenzhen)Co.,Ltd. Address4thFloor,No.110XinheAvenue,ShajingSub-district,Shenzhen FrequencyEfficiencypercentageGain 2400-6.9720.08%-0.6 2410-6.8720.55%-0.71 2420-6.7920.94%-0.67 2430-7.1519.26%-1.45 2440-7.7516.78%-1.9 2450-8.1915.15%-2.39 2460-8.7113.46%-3.27 2470-9.2911.79%-3.59 2480-9.411.47%-3.78 Antenna Name: Onboard Antenna 1.Antenna size 2.Gain 3. 2D test chart

ReportNo.:CISRR26032423301 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of57 TESTREPORT ReportNo.CISRR26032423301 ProjectNo.CISR260324233 FCCID2BUKE-YD606 ApplicantGuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCity Address IntersectionofXianboGuRongRoadandZhongyingRoad,GuraoTown, ChaoyangDistrict,ShantouCity ManufacturerGuraoQuemingElectronicsFactory,ChaoyangDistrict,ShantouCity Address IntersectionofXianboGuRongRoadandZhongyingRoad,GuraoTown, ChaoyangDistrict,ShantouCity ProductNameBluetoothEarphones Trademark- Model/TypereferenceYD606 ListedModel(s)OHR711,YD668,OHR306 Standard 47CFRPart15.247 DateofsamplereceiptMarch26,2026 TestdateMarch26,2026toMarch31,2026 IssuedateApril1,2026 TestresultComplied Reviewedby:MorganTan Approvedby:HansHu ReportNo.:CISRR26032423301 Page 2 of 57 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Supportunitusedintestconfiguration....................................................................................................7 5.4.Testsampleinformation.............................................................................................................................7 5.5.Environmentalconditions...........................................................................................................................7 5.6.Statementofthemeasurementuncertainty.............................................................................................8 5.7.EquipmentUsedduringtheTest................................................................................................................9 6.TESTRESULTS.............................................................................................................................................11 6.1.EvaluationResults(Evaluation)...............................................................................................................11 6.1.1.AntennaRequirement.............................................................................................................................11 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................12 6.2.1.ConductedEmissionatACpowerline.................................................................................................12 6.2.2.20dBBandwidth......................................................................................................................................15 6.2.3.MaximumConductedOutputPower.....................................................................................................17 6.2.4.ChannelSeparation................................................................................................................................18 6.2.5.NumberofHoppingFrequencies..........................................................................................................19 6.2.6.DwellTime...............................................................................................................................................20 6.2.7.Conductedbandedgeandspuriousemission...................................................................................22 6.2.8.Radiatedbandedgeemission...............................................................................................................24 6.2.9.RadiatedSpuriousEmission(below1GHz).........................................................................................30 6.2.10.RadiatedSpuriousEmission(Above1GHz)......................................................................................34 7.APPENDIXREPORT......................................................................................................................................42 7.1.ConductedOutputPower.........................................................................................................................42 7.2.20dBBandwidth.........................................................................................................................................44 7.3.NumberOfHoppingChannel.............................…

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ReportNo.:CISRR26032423301 Page 59 of 64 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR26032423301 Page 60 of 64 RadiatedSpuriousEmission(below1GHz)