2BQT6-BH3BH3 Smart Bracelet

BH3 Smart Bracelet FCC Caution: This device complies with par t 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful inter ference, and (2) this device must accept any inter ference received, including inter ference that may cause undesired operation. Any changes or modifications not expressly approved by the par ty 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 Par t 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 inter ference to radio communications. However, there is no guarantee that inter ference will not occur in a par ticular installation. If this equipment does cause harmful inter ference to radio or television reception,which can be determined by turning the equipment off and on, the user is encouraged to tr y to correct the inter ference 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/T V technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in por table exposure condition without restriction. Thank you for choosingour smar t bracelet!For your convenience,please carefully read the manual and follow the provided steps whenusing this device for the first time. Please note the following guidelines: Bluetooth Connection 1.Please ensure bluetooth is enabled on both your phone and the bracelet. 2.Confirm that the bracelet is not bound to another account during Bluetooth discover y. 3.Keep the bracelet and phone as close as possible for optimal connection per formance. Charging Requirements: Use a charger with a specification of5V 0.5-2A.lf the batter y is unused for extended periods, turn off the device and recharge it monthly. Ensure Data Accuracy : Stay relaxed and motionless during testing. Keep the bracelet at the same height as your hear t. Remain silent during the test. Note:This feature provides data references for obser ving hear t rate changes before/af ter exercise and is not intended for medical purposes.

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BQT6-BH3 BH3、SY3、BV4、BL3、BM3、BA2、 BB2、BC2、BD2、BF2、BQ2 We, Applicant CompanyName:ShenzhenKunwuTechnologyCo.,Ltd Address:Room1301,13F,BuildingA,Rongfeng Center,XiangjiaotangCommunity,Bantian Subdistrict,LonggangDistrict,Shenzhen City,China Phone:13172459540 certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-1 SignatureDate PrintedNameofSignee:QianYang Company:ShenzhenKunwuTechnologyCo., Ltd Phone:13172459540 Email:[email protected] Address:Room1301,13F,BuildingA, RongfengCenter,XiangjiaotangCommunity, BantianSubdistrict,LonggangDistrict, ShenzhenCity,China Fax:N/A

ShenzhenKunwuTechnologyCo.,Ltd Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity,Bantian Subdistrict,LonggangDistrict,ShenzhenCity,China Date:2025-12-1 FCCID:2BQT6-BH3 ModelNumber:BH3、SY3、BV4、BL3、BM3、BA2、BB2、BC2、BD2、BF2、BQ2 To:FederalCommunicationCommission AuthorizationandEvaluationDivision7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We,ShenzhenKunwuTechnologyCo.,Ltd.herebydeclarethatourproduct(SmartRing） ModelNumber:BH3、SY3、BV4、BL3、BM3、BA2、BB2、BC2、BD2、BF2、BQ2 theyare electricalidentical,theSchematic,PCBlayout,structureandsoftwarearesame,onlythe differenceisthemodelnameformarketpurpose. Sincerely, (Signed) Name/Title:QianYang/Manager Company:ShenzhenKunwuTechnologyCo.,Ltd. Address:Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity, BantianSubdistrict,LonggangDistrict,ShenzhenCity,China Phone:13172459540 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 2BQT6-BH3 BH3、SY3、BV4、BL3、BM3、BA2、BB2、 BC2、BD2、BF2、BQ2 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription theBlockDiagram  theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-1 SignatureDate PrintedNameofSignee/Title:QianYang/Manager Company:ShenzhenKunwuTechnologyCo.,Ltd Address:Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity,Bantian Subdistrict,LonggangDistrict,ShenzhenCity,China Phone:13172459540 Fax:N/A Email:[email protected]

ReportNo.:CISRR25110704901 Page 46 of 52 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR25110704901 Page 47 of 52 ReportNo.:CISRR25110704901 Page 48 of 52 ReportNo.:CISRR25110704901 Page 49 of 52

Label Size:10mm*4mm FCCID:2BQT6-BH3 LabelLocation

ReportNo.:CISRR25110704901 Page 50 of 52 9.2.InternalPhotos ReportNo.:CISRR25110704901 Page 51 of 52 ANT ReportNo.:CISRR25110704901 Page 52 of 52 ------Endofthereport-----

ReportNo.: CISRR25110704902 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.: CISRR25110704902 ProjectNo.: CISR251107049 FCCID:2BQT6-BH3 Applicant:ShenzhenKunwuTechnologyCo.,Ltd. Address: Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity, BantianSubdistrict,LonggangDistrict,ShenzhenCity Manufacturer: ShenzhenKunwuTechnologyCo.,Ltd. Address: Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity, BantianSubdistrict,LonggangDistrict,ShenzhenCity ProductName: BH3SmartBracelet TradeMark:- Model/Typereference:BH3 ListedModel(s):SY3,BV4,BL3,BM3,BA2,BB2,BC2,BD2,BF2,BQ2 Standard:47CFRPart2.1093 Issuedate:November25,2025 Testresult:Complied Reviewedby:MorganTan Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.: CISRR25110704902 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00November25,2025Original ReportNo.: CISRR25110704902 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThesedevicesuseasingletransmittermoduleandantennaforBT,BTcannottransmitsimultaneously. ReportNo.: CISRR25110704902 Reporttemplateversion:CISE-TR-001-A0Page:4of5 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 Bluetooth2.443.51-11.37-7.86-6.005.000.07853.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.: CISRR25110704902 Reporttemplateversion:CISE-TR-001-A0Page:5of5 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--------

ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,PortShenzhenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 TestReport Customername Projectname Ring Debugband 2.4-2.5G Structuremode Board mounted Radiofrequencyengi- neer WuGong Constructionengin- eer Antennatype PIFA Date 2025-11-3 ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,HongshenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 、 TheStarLab3Dlaboratory,importeddirectlyfrom France'sSATIMO,canaccuratelyandquicklytestco- mmunicationterminalproductssuchasmobilephones, tablets,andlaptops,includingTRP,TIS,andefficiency. Gain,applediagram,directiondiagramandotherparameters. ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,HongshenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 AntennaReportVersionSummary Edition Date ContentOver- view V1.02025-10-28 AntennaEfficiencyTestReport V2.02025-11-3 Modifytheantennaefficiencytestreport. ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,PortShenzhenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 Mainantennamatchingcircuit------Unchanged ElementE1E2E3E4 Value ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceLinkTechnologyCo., Ltd. Address:Room302,Floor3,BuildingB,HongshenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 passivestandingwavepattern ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,HongshenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 antennaeffeciency PassiveTestFor2.4G FreqEffiGain (MHz)(%)(dBi) 24002.85-11.46 24102.78-11.64 24202.91-11.5 24302.83-11.65 24403.08-11.4 24503.15-11.37 24603.22-11.44 24703.11-11.7 24803.26-11.59 24902.93-12.12 25002.89-12.1 ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,PortShenzhenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,PortShenzhenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceTechnol- ogyCo.,Ltd. Address:Room302,Floor3,BuildingB,HongshenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 ShenzhenAnfuteElectronicsCo.,Ltd. ShenzhenInfiniteIntelligenceLinkTechnologyCo.,Ltd. Address:Room302,Floor3,BuildingB,PortShenzhenInnovationPark,40HuaningRoad,DalangStreet,LonghuaDistrict,Shenzhen,ChinaTel:0755-27888203Fax:0755-27888450 antennatrimmingdiagram MattersNeedAttention： 1、Thisantennaisexclusivelyforprototypedebugging.AnymodificationstothemotherboardPCB,RFcircuitcomponents,oraccessories(e.g., cameras,screens,speakers,motors,batteries,orhousingprocesses)mustundergoourcompany'sfulltestingandvalidationbeforeimplementation. 2、Forthird-partyverificationofthisproject,pleasesubmittheprototypetoourcompanyforretestingatleastone workingdayinadvance.Onlyafterapprovalshoulditproceedtotestingtoavoiddelayscausedbyrepeatedsubmissions.

ReportNo.:CISRR25110704901 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of42 TESTREPORT ReportNo.CISRR25110704901 ProjectNo.CISR251107049 FCCID2BQT6-BH3 ApplicantShenzhenKunwuTechnologyCo.,Ltd. Address Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity, BantianSubdistrict,LonggangDistrict,ShenzhenCity ManufacturerShenzhenKunwuTechnologyCo.,Ltd. Address Room1301,13F,BuildingA,RongfengCenter,XiangjiaotangCommunity, BantianSubdistrict,LonggangDistrict,ShenzhenCity ProductNameBH3SmartBracelet Trademark- Model/TypereferenceBH3 ListedModel(s)SY3,BV4,BL3,BM3,BA2,BB2,BC2,BD2,BF2,BQ2 Standard 47CFRPart15.247 DateofsamplereceiptNovember17,2025 TestdateNovember17,2025toNovember19,2025 IssuedateNovember25,2025 TestresultComplied Reviewedby:MorganTan Approvedby:HansHu ReportNo.:CISRR25110704901 Page 2 of 42 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.............................................................................................7 5.7.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.6dBBandwidth........................................................................................................................................15 6.2.3.MaximumConductedOutputPower.....................................................................................................16 6.2.4.PowerSpectralDensity..........................................................................................................................17 6.2.5.Conductedbandedgeandspuriousemission...................................................................................18 6.2.6.Radiatedbandedgeemission...............................................................................................................19 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................25 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................29 7.APPENDIXREPORT......................................................................................................................................37 7.1.ConductedOutputPower.........................................................................................................................37 7.2.6dBBandwidth...........................................................................................................................................38 7.3.ConductedSpurious&BandEdgeEmission.........................................................................................39 7.4.DutyCycle..................................................................................................................................................41 7.5.PowerSpectralDensity.......................…

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ReportNo.:CISRR25110704901 Page 44 of 52 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR25110704901 Page 45 of 52 RadiatedSpuriousEmission(below1GHz)