2BS7U-POSSIBALLGPS Heart Rate Tracker

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BS7U-POSSIBALL Possiball、PossiballLite、PossiballPro、 PossiballLive We, Applicant CompanyName:ChengduPaPoTechnologyCo.,LTD Address:3rdFloor,F305,TianxiangPlazaD5,No.500 TianfuAvenue,High-techZone,Chengdu, SichuanProvince,China Phone:+8613628041110 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:YunYin Company:ChengduPaPoTechnology Co.,LTD Phone:+8613628041110 Email:[email protected] Address:3rdFloor,F305,TianxiangPlazaD5, No.500TianfuAvenue,High-techZone, Chengdu,SichuanProvince,China Fax:N/A

ChengduPaPoTechnologyCo.,LTD 3rdFloor,F305,TianxiangPlazaD5,No.500TianfuAvenue,High-techZone,Chengdu, SichuanProvince,China Date:2025-12-1 FCCID:2BS7U-POSSIBALL ModelNumber:Possiball、PossiballLite、PossiballPro、PossiballLive To:FederalCommunicationCommission AuthorizationandEvaluationDivision7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We,ChengduPaPoTechnologyCo.,LTDherebydeclarethatourproduct(Wireless Doorbell)ModelNumber:Possiball、PossiballLite、PossiballPro、PossiballLive electricalidentical,theSchematic,PCBlayout,structureandsoftwarearesame,onlythe differenceisthemodelnameandcolorformarketpurpose. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehave mybestattention. Sincerely, (Signed) Name/Title:YunYin/Manager Company:ChengduPaPoTechnologyCo.,LTD Address:3rdFloor,F305,TianxiangPlazaD5,No.500TianfuAvenue,High-techZone, Chengdu,SichuanProvince,China Phone:+8613628041110 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 2BS7U-POSSIBALL Possiball、PossiballLite、PossiballPro、 PossiballLive Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare: theOperationalDescription  theBlockDiagram  theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-1 SignatureDate PrintedNameofSignee/Title:YunYin/Manager Company:ChengduPaPoTechnologyCo.,LTD Address:3rdFloor,F305,TianxiangPlazaD5,No.500Tianfu Avenue,High-techZone,Chengdu,SichuanProvince, China Phone:+8613628041110 Fax:-- Email:[email protected]

ReportNo.:CISRR25111712501 Page 47 of 51 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR25111712501 Page 48 of 51 ReportNo.:CISRR25111712501 Page 49 of 51

Label Size:20mm*16mm FCCID:2BS7U-POSSIBALL ModelNo.:Possiball LabelLocation

ReportNo.:CISRR25111712501 Page 50 of 51 9.2.InternalPhotos ANT ReportNo.:CISRR25111712501 Page 51 of 51 ------Endofthereport-----

ReportNo.: CISRR25111712502 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.: CISRR25111712502 ProjectNo.: CISR251117125 FCCID:2BS7U-POSSIBALL Applicant:ChengduPaPoTechnologyCo.,LTD Address: 3rdFloor,F305,TianxiangPlazaD5,No.500TianfuAvenue,High-tech Zone,Chengdu,SichuanProvince,China Manufacturer: ChengduPaPoTechnologyCo.,LTD Address: 3rdFloor,F305,TianxiangPlazaD5,No.500TianfuAvenue,High-tech Zone,Chengdu,SichuanProvince,China ProductName: GPSHeartRateTracker TradeMark:神仙球Possiball Model/Typereference:Possiball ListedModel(s):PossiballLite,PossiballPro,PossiballLive Standard:47CFRPart2.1093 Issuedate:November24,2025 Testresult:Complied Reviewedby:MorganTan Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.: CISRR25111712502 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 00November24,2025Original ReportNo.: CISRR25111712502 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThisdeviceuseasingletransmittermoduleandantennaforBT,BTcannottransmitsimultaneously. ReportNo.: CISRR25111712502 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 Bluetooth2.44-0.451.861.412.005.000.49513.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.: CISRR25111712502 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--------

Shenzhen Hemin Micro Technology Co., Ltd. QC650 Antenna Report Responsible：Mr. Feng Tel： Date：2023/12/27 Add:1st Floor, Building B, Jinghang Industrial Park, Liuxian 3rd Road, Bao 'an District 71, Shenzhen City Passive and Active Testing - 5G Microwave Chamber Test System Test environment Active testing GTS280 Passive testing 0 Temperature： 25 °C±3°C Humidness：50%±15% 600MHZ——6 5G/4G/3G/2G-Supported BT/WIFI/GPS-Supported G Project Debugging Overview Overall machine type BT2.4 Antenna types and frequency band information Main Antenna G PCB-mounted Antenna form antenna Version history Possiball VersionDateContent V1.22023/12/27 Debug Antenna schematic diagram Antenna schematic diagram S11 Antenna efficiency gain Gain Efficiency 3DRadiationPattern 3DRadiationPattern 3DRadiationPattern

ReportNo.:CISRR25111712501 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of43 TESTREPORT ReportNo.CISRR25111712501 ProjectNo.CISR251117125 FCCID2BS7U-POSSIBALL ApplicantChengduPaPoTechnologyCo.,LTD Address 3rdFloor,F305,TianxiangPlazaD5,No.500TianfuAvenue,High-tech Zone,Chengdu,SichuanProvince,China ManufacturerChengduPaPoTechnologyCo.,LTD Address 3rdFloor,F305,TianxiangPlazaD5,No.500TianfuAvenue,High-tech Zone,Chengdu,SichuanProvince,China ProductNameGPSHeartRateTracker Trademark 神仙球Possiball Model/TypereferencePossiball ListedModel(s)PossiballLite,PossiballPro,PossiballLive Standard 47CFRPart15.247 DateofsamplereceiptNovember20,2025 TestdateNovember20,2025toNovember22,2025 IssuedateNovember24,2025 TestresultComplied Reviewedby:MorganTan Approvedby:HansHu ReportNo.:CISRR25111712501 Page 2 of 43 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 6.2.2.6dBBandwidth........................................................................................................................................16 6.2.3.MaximumConductedOutputPower.....................................................................................................17 6.2.4.PowerSpectralDensity..........................................................................................................................18 6.2.5.Conductedbandedgeandspuriousemission...................................................................................19 6.2.6.Radiatedbandedgeemission...............................................................................................................20 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................26 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................30 7.APPENDIXREPORT......................................................................................................................................38 7.1.6dBBandwidth...........................................................................................................................................38 7.2.ConductedOutputPower.........................................................................................................................39 7.3.PowerSpectralDensity.............................................................................................................................40 7.4.DutyCycle..................................................................................................................................................41 7.5.ConductedSpurious&BandEdgeEmis…

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ReportNo.:CISRR25111712501 Page 45 of 51 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline RadiatedSpuriousEmission(below1GHz) ReportNo.:CISRR25111712501 Page 46 of 51 Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz)