2BF7U-YY-COB-RGBBluetooth controller

Rev1/26/2023 FoshanYiyiLightingTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-07-03 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BF7U-YY-COB-RGB FoshanYiyiLightingTechnologyCo.,Ltdcertifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. FoshanYiyiLightingTechnologyCo.,Ltdcertifiesthattheequipmentforwhich authorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKaspersky Lab,Inc.(oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24- 886andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature) (ZhixiongLin) Rev1/26/2023 FoshanYiyiLightingTechnologyCo.,Ltd FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-07-03 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BF7U-YY-COB-RGB FoshanYiyiLightingTechnologyCo.,Ltdcertifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofits subsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (ZhixiongLin)

FoshanYiyiLightingTechnologyCo.,Ltd Date:2026.4.30 ProductModelNumber:YY-COB-RGB FCCID:2BF7U-YY-COB-RGB Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C.CanadaV5J5K5to actonourbehalfonallmattersconcerningtheabovenamedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatORGANIZATION.isallowedtoforwardallinformationrelatedtotheapproval projecttotheappliedcertificationbodyandtothenotificationentitiesandtodiscussanyissues concerningtheapprovalapplication.AnyandallactscarriedoutbyORGANIZATION.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:18899750096 Onbehalfof:ZhixiongLin

FoshanYiyiLightingTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:July3,2026 Subject;RequestforConfidentiality FCCID:2BF7U-YY-COB-RGB ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. ☑SchematicDiagram ☑BlockDiagram ☑OperationalDescription 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:ZhixiongLin Title:Manager

FCCID:2BF7U-YY-COB-RGB ExternalPhotosoftheEUT Fig.1 Fig.2 FCCID:2BF7U-YY-COB-RGB Fig.3 Fig.4 FCCID:2BF7U-YY-COB-RGB Fig.5 Fig.6 FCCID:2BF7U-YY-COB-RGB Fig.7

FCCID:2BF7U-YY-COB-RGB labelandlocation Fig.1 FCCID:2BF7U-YY-COB-RGB Bluetoothcontroller Model:YY-COB-RGB Input:DC5V FoshanYiyiLightingTechnologyCo.,Ltd 11.4mm 30.1mm

FCCID:2BF7U-YY-COB-RGB InternalPhotosoftheEUT Fig.1 Fig.2 Bluetooth Antenna FCCID:2BF7U-YY-COB-RGB Fig.3

ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd. 101#,BuildingK&BuildingT,TheSecondIndustrialZone,JiazitangCommunity, FenghuangStreet,GuangmingDistrict,Shenzhen,China RFExposureevaluation ReportReferenceNo........................: FCCID.................................................: GRCTR260602004-02 2BF7U-YY-COB-RGB Compiledby (position+printedname+signature) .. : TestingEngineerJimmyWang Supervisedby (position+printedname+signature)..: ProjectEngineerKelleyZhang Approvedby (position+printedname+signature)..: ManagerZhihuiDeng Dateofissue ......................................... :Jun.26,2026 TestingLaboratoryName ................ :ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd. Address ................................................. : 101#,BuildingK&BuildingT,TheSecondIndustrialZone, JiazitangCommunity,FenghuangStreet,GuangmingDistrict, Shenzhen,China Applicant’sname...............................:FoshanYiyiLightingTechnologyCo.,Ltd Address.................................................: Shop802onthefirstfloor,No.283XitouNewVillage,Hecheng Street,GaomingDistrict,FoshanCity Testspecification..............................: Standard ................................................ : 47CFR§2.1091 KDB447498D01v06 ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerand sourceofthematerial.ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.takesno responsibilityforandwillnotassumeliabilityfordamagesresultingfromthereader'sinterpretationofthe reproducedmaterialduetoitsplacementandcontext. Testitemdescription........................:Bluetoothcontroller TradeMark ............................................ : / Manufacturer ......................................... : FoshanYiyiLightingTechnologyCo.,Ltd Model/Typereference.........................: YY-COB-RGB ListedModels......................................: / HardwareVersion...............................:V1.0 SoftwareVersion..................................:V1.0 Frequency .............................................. From2402MHzto2480MHz Ratings ................................................... :DC5VFromExternalCircuit Result.....................................................:PASS ReportNo.:GRCTR260602004-02Page2of9 TESTREPORT EquipmentunderTest:Bluetoothcontroller Model/Type:YY-COB-RGB ListedModels:/ Applicant : FoshanYiyiLightingTechnologyCo.,Ltd Address: Shop802onthefirstfloor,No.283XitouNewVillage,Hecheng Street,GaomingDistrict,FoshanCity Manufacturer : FoshanYiyiLightingTechnologyCo.,Ltd Address: Shop802onthefirstfloor,No.283XitouNewVillage,Hecheng Street,GaomingDistrict,FoshanCity TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:GRCTR260602004-02Page3of9 Contents 1.SUMMARY...............................................................................................................................................4 1.1.GeneralRemarks.........................................................................................................................................4 1.2.ProductDescription....................................................................................................................................4 1.3.EquipmentUnderTest................................................................................................................................4 1.4.ShortdescriptionoftheEquipmentunderTest(EUT)............................................................................4 1.5.EUTconfiguration........................................................................................................................................5 1.6.Modifications................................................................................................................................................5 2.TESTENVIRONMENT.......................................................................................................................6 2.1.Addressofthetestlaboratory...................................................................................................................6 2.2.TestFacility..................................................................................................................................................6 2.3.Environmentalconditions...........................................................................................................................6 2.4.Statementofthemeasurementuncertainty.............................................................................................6 3.METHODOFMEASUREMENT.....................................................................................................8 3.1.ApplicableStandard....................................................................................................................................8 3.2.Limit...............................................................................................................................................................8 3.3.MPECalculationMethod.............................................................................................................................8 3.4.AntennaInformation....................................................................................................................................9 3.5.ManufacturingTolerance............................................................................................................................9 4.EVALUATIONRESULT....................................................................................................................9 5.CONCLUSION........................................................................................................................................9 ReportNo.:GRCTR…

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Antenna describe 1. Antenna describe: Antenna plate PCB ANTENNA Make name/model name PDT-002 Antenna gain 0dBi Frequency range 2.4GHZ-2.483GHZ Connector type direct Manufacturer Name: DONGGUANG XIAOKE INDUSTRLES.CO.,LTD Manufacture Address: NO. 227, DONGCHENG SECTION, GUANDONG ROAD, DONGCHENG STREET, DONGGUAN CITY,CHINA Picture of antenna Antenna Dimensions L1 2.15 mm L2 1.20 mm L3 1.95 mm W1 0.35 mm W2 0.35 mm D1 1.25 mm D2 1.65 mm D3 0.50 mm 2.External view drawing: 3.Antenna Radiation Pattern

ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd. 101#,BuildingK&BuildingT,TheSecondIndustrialZone,JiazitangCommunity, FenghuangStreet,GuangmingDistrict,Shenzhen,China FCCPART15SUBPARTCTESTREPORT FCCPART15.247 ReportReferenceNo........................: FCCID.................................................: GRCTR260602004-01 2BF7U-YY-COB-RGB Compiledby (position+printedname+signature) .. : TestingEngineerJimmyWang Supervisedby (position+printedname+signature)..: ProjectEngineerKelleyZhang Approvedby (position+printedname+signature)..: ManagerZhihuiDeng Dateofissue ......................................... :Jun.26,2026 TestingLaboratoryName ................ : ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd. Address.................................................: 101#,BuildingK&BuildingT,TheSecondIndustrialZone,Jiazitang Community,FenghuangStreet,GuangmingDistrict,Shenzhen, China Applicant’sname...............................: FoshanYiyiLightingTechnologyCo.,Ltd Address ................................................. : Shop802onthefirstfloor,No.283XitouNewVillage,Hecheng Street,GaomingDistrict,FoshanCity Testspecification..............................: Standard ................................................ :FCCPart15.247 ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerand sourceofthematerial.ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.takesno responsibilityforandwillnotassumeliabilityfordamagesresultingfromthereader'sinterpretationofthe reproducedmaterialduetoitsplacementandcontext. Testitemdescription........................: Bluetoothcontroller TradeMark............................................: / Manufacturer.........................................: FoshanYiyiLightingTechnologyCo.,Ltd Model/Typereference.........................: YY-COB-RGB ListedModels......................................: / FirmwareVersion.................................:V1.0 HardwareVersion................................:V1.0 Modulation...........................................: GFSK Frequency .............................................. From2402MHzto2480MHz Ratings...................................................: DC5VFromExternalCircuit Result.....................................................: PASS ReportNo.:GRCTR260602004-01Page 2 of 35 TESTREPORT EquipmentunderTest:Bluetoothcontroller Model/Type:YY-COB-RGB ListedModels:/ Applicant : FoshanYiyiLightingTechnologyCo.,Ltd Address: Shop802onthefirstfloor,No.283XitouNewVillage,Hecheng Street,GaomingDistrict,FoshanCity Manufacturer : FoshanYiyiLightingTechnologyCo.,Ltd Address: Shop802onthefirstfloor,No.283XitouNewVillage,Hecheng Street,GaomingDistrict,FoshanCity TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:GRCTR260602004-01Page 3 of 35 Contents 1TESTSTANDARDS..............................................................................................................................4 2SUMMARY.................................................................................................................................................5 2.1GeneralRemarks..........................................................................................................................................5 2.2ProductDescription.....................................................................................................................................5 2.3EquipmentUnderTest.................................................................................................................................5 2.4ShortdescriptionoftheEquipmentunderTest(EUT).............................................................................5 2.5EUTconfiguration.........................................................................................................................................5 2.6EUToperationmode.....................................................................................................................................6 2.7BlockDiagramofTestSetup.......................................................................................................................6 2.8RelatedSubmittal(s)/Grant(s)...................................................................................................................6 2.9Modifications.................................................................................................................................................7 3TESTENVIRONMENT........................................................................................................................8 3.1Addressofthetestlaboratory....................................................................................................................8 3.2TestFacility...................................................................................................................................................8 3.3Environmentalconditions............................................................................................................................8 3.4Summaryofmeasurementresults..............................................................................................................9 3.5Statementofthemeasurementuncertainty..............................................................................................9 3.6EquipmentsUsedduringtheTest............................................................................................................10 4TESTCONDITIONSANDRESULTS.......................................................................................11 4.1ACPowerConductedEmission................................................................................................................11 4.2Rad…

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FCCID:2BF7U-YY-COB-RGB TestSetupPhotosoftheEUT TestSetupPhoto(s)ofRadiatedEmissionsMeasurement Fig.1 Fig.2 FCCID:2BF7U-YY-COB-RGB TestSetupPhoto(s)ofConductedEmissionsMeasurement Fig.3 TestSetupPhoto(s)ofRFMeasurement Fig.6