2AIFL-GR03Wireless Receiver

Bluetooth Receiver Model: GR03 Product Diagram: Power on/off Power off Power on Long press Pairing Power on the device, turn on your mobile phone BT and search for the pairing name “GR03” to paired them. After the connection is successfully, there is a prompt tone, and the atmosphere light keeps on. Play Music After BT connection, Please insert one end of the audio cable or pin into the audio port of the BT receiver, and connect the other end to the output device to listen to songs or talk with the receiver. Play/Pause Previous song Next song Volume - Volume + Switch TF card/ BT audio source Short press Short press Short press Long press Long press Click three times to switch to Bluetooth audio mode, need to short press to play. Make Phone Call Reject phone call Redial the last phone call no Answer/Hang up the call Long press Click Double click Power Button TF Card Slot Previous Song/Volume- AUX Type-C Port Next Song/Volume+ Long press Connect to two mobile phones Phone A Paired BT successfully connect BT successfully connect Paired GR03 ON BT off A BT ON B A Phone BGR03 Turn off Phone B Phone A Auto connect Specifications: BT Version: 5.3 Frequency Range: 2.4GHz Output Power Category: Class2 Bluetooth Mode: HFP/HSPIA2DPIAVRCP Bluetooth Range: up to 10m Battery: 250mAh Working Current: 15~30mA Charge Voltage: DC 5.0V Charge Current: 140mA The atmosphere light status Waiting for pairing Atmosphere light flashes from left to right Colorful light keeps on Atmosphere light keeps on Atmosphere light flashes then turns off Atmosphere light flashes once then flashing from left to right Atmosphere light in breathing mode flashes slowly Playing music Bluetooth connect successfully Pause music Power off Power on This device with colorful atmosphere light. There are different lighting effects in different states such as music playing and charging. 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 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. Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment The devices has been evaluated to meet general RF exposure requirement the device can be used in portable exposure condition without restriction

Modeldifferencedeclarationletter DifferencesDescription WeShenzhenGuangXinYiElectronicsCo.,Ltd.state: Product：WirelessReceiver ModelName： GR03,GR01,GR05,GR06,GR07,GR11,GR13,GR15, GR16,GR21,GR23,GR24,G29,H1,GZ01,GZ03, GZ05,GZ06,GZ07,GZ11,GZ13,GZ15,GZ16,GZ21, GC01,GC03,GC05,GC06,GC07,GC11,GC13,GC15, GC16,GC21 Theaboveproductwithsamecircuit,PCBlayout,electricalparts,materialsandwiring structures,Appearanceshape,thematerialsofdecorativeaccessoriesissame,only differentcolor. Signatory Date:Feb21,2023 <Signature> Name：WeianWang Title：manager Company：ShenzhenGuangXinYiElectronicsCo.,Ltd. Address:501,YufengindArea,Shangtang,LonghuaNewArea,Shenzhen,China

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:WilsonTechServiceLLC FRN:0033402033 ContactName:WilsonCheung Address:131217thStreetSuite692,Denver,CO,80202,US Email:[email protected] ThisletteristoconfirmthattheUSAgentforServiceofProcessacceptsresponsibilitytoactas alocalrepresentativeonbehalfofShenzhenGuangXinYiElectronicsCo.,Ltd. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. Applicant: Companyname:ShenzhenGuangXinYiElectronicsCo.,Ltd. ProductDescription:WirelessReceiver Granteecode:2AIFL FCCID:2AIFL-GR03 ContactName:WeianWang Address:501,YufengindArea,Shangtang,LonghuaNewArea,Shenzhen,China TelephoneNo:+86-13510067584 Email:[email protected] TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. ThisAgreementisvaliduntil(Feb24,2024). Date:2023/02/24 Applicant’sName:ShenzhenGuangXinYi ElectronicsCo.,Ltd. USAgentforServiceofProcess’sName: WilsonTechServiceLLC Title:managerTitle:manager SignatureSignature

COMPANYLETTERHEAD CoveredEquipmentCertificationAttestationLetter Signed DATE Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Wireless Receiver FCC ID: 2AIFL-GR03 Shenzhen Guang Xin Yi Electronics Co.,Ltd. (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an Shenzhen Guang Xin Yi Electronics Co.,Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. : Printedname:WeianWang Title:manager CompanyName:ShenzhenGuangXinYiElectronicsCo.,Ltd. Date:Feb21.2023

C5266091_X8_Ed.1 1/1 LetterofAuthorization ShenzhenGuangXinYiElectronicsCo.,Ltd. Company:ShenzhenGuangXinYiElectronicsCo.,Ltd. Address:501,YufengindArea,Shangtang,LonghuaNewArea,Shenzhen,China ProductName:WirelessReceiver ModelNumber:GR03,GR01,GR05,GR06,GR07,GR11,GR13,GR15,GR16,GR21, GR23,GR24,G29,H1,GZ01,GZ03,GZ05,GZ06,GZ07,GZ11,GZ13,GZ15,GZ16,GZ21, GC01,GC03,GC05,GC06,GC07,GC11,GC13,GC15,GC16,GC21 FCCIdentifier:2AIFL-GR03 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:WeianWangDate:Feb21,2023 Title:manager Signatureofapplicant:

C5266091_X10_Ed.2 1/1 ShenzhenGuangXinYiElectronicsCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:Feb21,2023 Subject:RequestforConfidentiality FCCID:2AIFL-GR03 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof______daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name:WeianWang Title:manager

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LabelandLabelLocation FCCID:2AIFL-GR03

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FCCRFExposure EUTDescription:WirelessReceiver ModelNo.:GR03,GR01,GR05,GR06,GR07,GR11,GR13,GR15,GR16,GR21,GR23,GR24,G29,H1, GZ01,GZ03,GZ05,GZ06,GZ07,GZ11,GZ13,GZ15,GZ16,GZ21,GC01,GC03,GC05,GC06,GC07, GC11,GC13,GC15,GC16,GC21 FCCID:2AIFL-GR03 Equipmenttype:PortableDevice AccordingtoKDB447498andpart2.1093，UnlessspecificallyrequiredbythepublishedRF exposureKDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationfor generalpopulationexposureconditions,bymeasurementornumericasimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholocondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances<50mm,the1-gand10-gSARtestexclusion thresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distancemm)]·[vfGHz)]<3.0for1-gSAR,ands7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison EIRP=EMeas+20log(dmeas)-104.7 EIRPistheequivalentisotropicallyradiatedpower, EMeasindBmisthefieldstrengthoftheemissionatthemeasurementdistance,indBuV/m dMeasisthemeasurementdistance,inm Field strength(dBuV/m) EIRP(dBm)Maxtune- up(mW) Frequency(MHz)Min. distance(mm) Calc. thresholds limit 89.70-5.45760.28240250.0873.0 90.23-4.92760.32244050.1003.0 90.89-4.26760.37248050.1173.0

FCCTestReport ReportNo:FCS202302003W01 Issuedfor Applicant: ShenzhenGuangXinYiElectronicsCo.,Ltd. Address: 501,YufengindArea,Shangtang,LonghuaNewArea, Shenzhen,China ProductName: WirelessReceiver BrandName: N/A ModelName: GR03 SeriesModel: GR01,GR05,GR06,GR07,GR11,GR13,GR15,GR16, GR21,GR23,GR24,G29,H1,GZ01,GZ03,GZ05,GZ06,GZ07, GZ11,GZ13,GZ15,GZ16,GZ21,GC01,GC03,GC05,GC06, GC07,GC11,GC13,GC15,GC16,GC21 FCCID: 2AIFL-GR03 IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com Page2of31ReportNo.:FCS202302003W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com TESTRESULTCERTIFICATION Applicant’sName......................:ShenzhenGuangXinYiElectronicsCo.,Ltd. Address......................................:501,YufengindArea,Shangtang,LonghuaNewArea,Shenzhen,China Manufacture'sName ................ :DongguanLongheElectronicCo.,Ltd Address ...................................... : Room201,Building1,No.48BaijiaRoad,QingxiTown,DongguanCity, GuangdongProvince,China ProductDescription ProductName...........................:WirelessReceiver BrandName.............................:N/A ModelName..............................:GR03 SeriesModel..............................: GR01,GR05,GR06,GR07,GR11,GR13,GR15,GR16,GR21,GR23,GR24, G29,H1,GZ01,GZ03,GZ05,GZ06,GZ07,GZ11,GZ13,GZ15,GZ16,GZ21, GC01,GC03,GC05,GC06,GC07,GC11,GC13,GC15,GC16,GC21 TestStandards..........................:FCCRulesandRegulationsPart15SubpartC,Section249 TestProcedure..........................:ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedFCS,thetestresultsshowthattheequipmentundertest (EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsampleidentifiedin thereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFCS,thisdocumentmaybe alteredorrevisedbyFCS,personalonly,andshallbenotedintherevisionofthedocument.. DateofTest..................................: Date(s)ofperformanceoftests.:Feb.032023~Feb.092023 DateofIssue.................................:Feb.092023 TestResult ..................................... :Pass Testedby: (ScottShen) Reviewedby : (DukeQian) Approvedby: (JackWang) Page3of31ReportNo.:FCS202302003W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com TableofContentsPage 1.SUMMARYOFTESTRESULTS5 1.1TESTFACTORY6 1.2MEASUREMENTUNCERTAINTY6 2.GENERALINFORMATION7 2.1GENERALDESCRIPTIONOFTHEEUT7 2.2DESCRIPTIONOFTHETESTMODES9 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS10 2.4EQUIPMENTSLIST11 3CONDUCTEDEMISSIONMEASUREMENT12 3.1LIMIT12 3.2TESTPROCEDURE12 3.3TESTSETUP13 3.4TESTRESULTS14 4.RADIATEDEMISSIONMEASUREMENT16 4.1LIMIT16 4.2TESTPROCEDURE17 4.3TESTSETUP18 4.4TESTRESULTS19 5.BANDEDGETEST25 5.1LIMIT25 5.2TESTPROCEDURE25 5.3TESTSETUP26 5.4TESTRESULTS27 6.20DBBANDWIDTHTEST28 6.1LIMIT28 6.2TESTPROCEDURE28 6.3TESTSETUP28 6.4TESTRESULTS29 7.ANTENNAREQUIREMENT31 7.1STANDARDREQUIREMENT31 7.2EUTANTENNA31 Page4of31ReportNo.:FCS202302003W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com RevisionHistory Rev.IssueDateEffectPageContents 00Feb.092023AllInitialIssue Page5of31ReportNo.:FCS202302003W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com 1.SUMMARYOFTESTRESULTS FCCPart15.249,SubpartC Standard Section TestItemJudgmentRemark 15.207ConductedEmissionPASS-- 15.205(a),15.209(a), 15.249(a),15.249(c) RadiatedSpuriousEmissionPASS-- 15.209FieldstrengthoffundamentalPASS 15.249(d)BandEdgeEmissionPASS-- 15.215(c)20dBBandwidthPASS-- 15.203AntennaRequirementPASS-- NOTE: (1)”N/A”denotestestisnotapplicableinthisTestReport (2)AlltestsareaccordingtoANSIC63.10-2013 Page6of31ReportNo.:FCS202302003W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com 1.1TESTFACTORY CompanyName:FluxComplianceServiceLaboratory Address: Room105FloorBaohaoTechnologyBuilding1NO.15Gongye WestRoadHi-TechIndustrial,SongshanlakeDongguan Telephone:+86-769-27280901 Fax:+86-769-27280901 FCCTestFirmRegistrationNumber:514908 Designationnumber:CN0127 A2LAaccreditationnumber：5545.01 1.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U,whereexpendeduncertaintyUisbasedona standarduncertaintymultipliedbyacoveragefactorofk=2,providingalevelofconfidenceof approximately95%. No.ItemUncertainty 1RFoutputpower,conducted±0.71dB 2UnwantedEmissions,conducted±2.98dB 3ConductedEmission(9KHz-150KHz) ±4.13dB 4ConductedEmission(150KHz-30MHz) ±4.74dB 5Allemissions,radiated(<1G)9KHz-30MHz ±3.1dB 6Allemissions,radiated(<1G)30MHz-1000MHz ±3.2dB 7Allemissions,radiated(1GHz-18GHz) ±3.66dB 8Allemissions,radiated(18GHz-40GHz) ±4.31dB Page7of31ReportNo.:FCS202302003W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com 2.GENERALINFORMATION 2.1GENERALDESCRIPTIONOFTHEEUT ProductName WirelessReceiver TradeName N/A ModelName GR03 SeriesModel GR01,GR05,GR06,GR07,GR11,GR13,GR15, GR16,GR21,GR23,GR24,G29,H1,GZ01,GZ03,GZ05, GZ06,GZ07,GZ11,GZ13,GZ15,GZ16,GZ21,GC01, GC03,GC05,GC06,GC07,GC11,GC13,GC15,GC16, GC21 ModelDifference Theaboveproductwithsamecircuit,PCBlayout, electricalparts,materialsandwiringstructures, Appearanceshape,thematerialsofdecorative accessoriesissame,onlydifferentcolor. ChannelList PleaserefertotheNote2. BT Frequency:2…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency MAX. Gain -0.68 Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) 2400MHz 2450MHz2500MHz2400MHz2450MHz 2500MHz MAX. Gain -0.68dBi -1.73dBi -0.84dBi -0.68dBi -6.15dBi -3.70dBi -2.32dBi Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

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