2A2Z2-BX60Kids Smart Watch

SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED Date:August31,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestforFCCID:2A2Z2-BX60 SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITEDcertifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature)： (Applicantprintedname)：Chengfangchao (Title)：Manager_ (Company)：SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED Date:August31,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestforFCCID:2A2Z2-BX60 SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITEDcertifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Sincerely, (Applicantsignature)： (Applicantprintedname)：Chengfangchao (Title)：Manager_ (Company)：SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED

Applicant’sCompanyname:SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED Address ： 4F-173,No.1HuananAvenue,HehuaCommunity,PinghuStreet,LonggangDistrict, Shenzhen,518000 GranteeCode:2A2Z2 FRN:0031311905 Date:2026-06-17 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITEDcertifiesthat,asofthedateofthe filingoftheapplication,WearthinkInnovationsLLC.isourdesignatedU.S.agentforservice ofprocessfortheabovereferencedFCCID.SHENZHENBIGGERFIVETECHNOLOGYCO., LIMITEDacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. WearthinkInnovationsLLCaccepts,asofthedateofthefilingoftheapplication,the obligationofthedesignatedU.S.agentforserviceofprocessforrepresentativeonbehalfof theApplicantnotedbelowforallfutureFCCIDcertification. DesignatedU.S.AgentInformation: Name:WearthinkInnovationsLLC Address:8TheGreen#10702;Dover,DE19901 FRN:0038553897 ContactPerson:IvanCheng Tel.:01628-9461423 Email:[email protected] Sincerely, Signedonbehalfof（applicant’sname） SignedonbehalfofU.S.AgentCompany Name:ChengfangchaoName:IvanCheng Title:DirectorTitle:Manager Date:2026-06-17Date:2026-06-17

SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED Date:August26,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR Product: KidsSmartWatch ModelNO.:BX60 FCCID:2A2Z2-BX60 ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe(Blockdiagram,circuitschematic,and operatingdescription)requiredtobesubmittedwiththisapplicationbepermanently withheldfrompublicreview. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsidered asproprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfair advantageinthemarket. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, (Signature) ： (Applicantprintedname)：Chengfangchao (Title)：Manager_ (Company)：SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED

SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED Date:August13,2026 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION FCCID: 2A2Z2-BX60 ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenHuaxiaTestingTechnologyCo.,Ltd.toacton ourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthesigning ofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, (Signature) ： (Applicantprintedname)：Chengfangchao (Title)：Manager_ (Company)：SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED

Photographs-EUTConstructionalDetails

I n p u t : 5 V 1 A B X 6 0 F C C I D : 2 A 2 Z 2 - B X 6 0 I C : 2 8 9 1 6 - B X 6 0 I n p u t : 5 V 1 A B X 6 0 F C C I D : 2 A 2 Z 2 - B X 6 0 I C : 2 8 9 1 6 - B X 6 0

Photographs-EUTConstructionalDetails

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 RFExposureEvaluationReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260501068E-02 Applicant:SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED AddressofApplicant:4F-173,No.1HuananAvenue,HehuaCommunity,PinghuStreet,Longgang District,Shenzhen,518000 EquipmentUnderTest(EUT): EUTName: KidsSmartWatch TestModelNo.: BX60 ModelNo.: BX60 BrandName: BIGGERFIVE FCCID:2A2Z2-BX60 Standards: 47CFRPart1.1307 47CFRPart2.1093 447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2026-5-25 DateofTest:2026-5-25to2026-6-3 DateofIssue:2026-8-7 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-02 Page:2of7 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260501068E-02Rev.01 Initialreport 2026-8-7 Note: Thedifferencebetweenproduct#1andproduct#2isthatthemotormodelisdifferentincludinghavingdifferent supplier.Thekeydifferencesaretheappearanceandthemodelnumber.ThesechangesdonotaffectRF performance. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-02 Page:3of7 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBLE...................................................................................................................................4 4SAREVALUATION...........................................................................................................................................................5 4.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................5 4.1.1StandardRequirement......................................................................................................................................5 4.1.2Limits....................................................................................................................................................................5 4.1.3EUTRFExposure..............................................................................................................................................7 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-02 Page:4of7 3GeneralInformation 3.1ClientInformation Applicant: SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED AddressofApplicant: 4F-173,No.1HuananAvenue,HehuaCommunity,PinghuStreet, LonggangDistrict,Shenzhen,518000 Manufacturer:SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED AddressofManufacturer: 4F-173,No.1HuananAvenue,HehuaCommunity,PinghuStreet, LonggangDistrict,Shenzhen,Guangdong,518000,CN Factory:SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED AddressofFactory: 4F-173,No.1HuananAvenue,HehuaCommunity,PinghuStreet, LonggangDistrict,Shenzhen,Guangdong,518000,CN 3.2GeneralDescriptionofEUT ProductName: KidsSmartWatch ModelNo.:BX60 TestModelNoBX60 TradeMark: BIGGERFIVE EUTSupportsRadiosapplication: Bluetoothmode 2402-2480MHz SoftwareVersion: V1.0.22 HardwareVersion: V1.2 SampleType: MobilePortableFixLocation EUTPowerSupply: Li-ionbattery:DC3.85V350mAh,ChargebyDC5Vforadapter 3.3GeneralDescriptionofBLE OperationFrequency: 2402MHz~2480MHz BluetoothVersion: V5.3 ModulationTechnique: NonFrequencyHoppingSpreadSpectrum(NFHSS) ModulationType: GFSK NumberofChannel: BLE:40 TransferRate:BLE:1Mbps TestSoftwareofEUT: androidsystem AntennaType:FPCantenna AntennaGain:-2.9dBi SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-02 Page:5of7 4SAREvaluation 4.1RFExposureComplianceRequirement 4.1.1StandardRequirement 447498D04InterimGeneralRFExposureGuidancev01 3.2.SARTestReductionGuidance SARtestreductionprocedures[Glossary]allowusingaparticularsetoftestdataas representativeofother,similar,testconditions.Thismaybeappliedfordatawithindifferenttest positions(e.g.body,head,extremity),wirelessmodes(e.g.Wi-Fi,cellular),andfrequencybands.This testreductionprocessprovidesfortheuseoftestdataforonespecificchannel,whilereferencingto thosedatafordemonstratingcomplianceinotherrequiredchannelsforeachtestpositionofan exposurecondition,withintheoperatingmodeofafrequencyband.Thisislimitedspecificallytowhen thereported1-gor10-gSARforthemid-bandorhighestoutputpowerchannelmeetsanyofthe followingconditions. 4.1.2Limits SAR-basedthresholdsarederivedbasedonfrequency,power,andseparationdistanceoftheRF source.Theformuladefinesthethresholdsingeneralforeitheravailablemaximumtime averaged powerormaximumtime-averagedERP,whicheverisgreater. Ifthe…

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SHENZHEN YUSHENG COMMUNICATION EQUIPMENT CO., LTD Add: 407-411, Floor 4, Building 2, Yuntai Chuanggu Park, southeast of the intersection of Guangming Avenue and Dongchang Road, Guangming District, Shenzhen ANTENNA REPORT BX60 BT--FPC 2026-05-25 BT SWR BT efficiecy BT Gain= -2.9dBi Free-space Freq （MHz） Effi (%) Gain （dBi） Freq （MHz） Effi (%) Gain （dBi） 2400 25.88-3.48 2490 27.41-3.16 2410 26.81-3.31 2500 27.03-3.15 2420 27.73-3.23 2430 28.58-3.05 2440 29.07-2.9 2450 28.6-3.08 2460 27.61-3.17 2470 27.86-3.19 2480 28.01-3.07 BT Antenna size mm BT Thank you！

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonly tothesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260501068E-01 Applicant:SHENZHENBIGGERFIVETECHNOLOGYCO.,LIMITED AddressofApplicant:4F-173,No.1HuananAvenue,HehuaCommunity,PinghuStreet,Longgang District,Shenzhen,518000 EquipmentUnderTest(EUT): Product: KidsSmartWatch ModelNo.: BX60 TestModelNo.: BX60 BrandName: BIGGERFIVE FCCID:2A2Z2-BX60 Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-5-25 DateofTest:2026-5-25to2026-6-3 DateofIssue:2026-8-7 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-01 Page: 2 of 33 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260501068E-01Rev.01Initialreport2026-8-7 Note: Thedifferencebetweenproduct#1andproduct#2isthatthemotormodelisdifferentincludinghaving differentsupplier.Thekeydifferencesaretheappearanceandthemodelnumber.Thesechangesdonot affectRFperformance. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-01 Page: 3 of 33 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement 47CFRPart15,SubpartCSection 15.203/15.247(c) ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS ACPowerLine Conducted Emission 47CFRPart15,SubpartCSection 15.207 ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS ConductedPeakOutput Power 47CFRPart15,SubpartCSection 15.247(b)(3) ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS 6dBOccupied Bandwidth 47CFRPart15,SubpartCSection 15.247(a)(2) ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS PowerSpectralDensity 47CFRPart15,SubpartCSection 15.247(e) ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS Band-edgeforRF ConductedEmissions 47CFRPart15,SubpartCSection 15.247(d) ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS RFConductedSpurious Emissions 47CFRPart15,SubpartCSection 15.247(d) ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS RadiatedSpurious Emissions 47CFRPart15,SubpartCSection 15.205/15.209 ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15,SubpartCSection 15.205/15.209 ANSI C63.10- 2020+Cor.1- 2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260501068E-01 Page: 4 of 33 3Contents Page 1VERSION..........................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................3 3CONTENTS......................................................................................................................................................................4 4GENERALINFORMATION...........................................................................................................................................5 4.1CLIENTINFORMATION.................................................................................................................................................5 4.2GENERALDESCRIPTIONOFEUT.................................................................................................................................5 4.3ADDITIONALINSTRUCTIONS........................................................................................................................................7 4.4TESTENVIRONMENT...................................................................................................................................................8 4.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................8 4.6TESTCONFIGURATION................................................................................................................................................8 4.7STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................................9 4.8TESTLOCATION........................................................................................................................................................10 4.9TESTFACILITY..........................................................................................................................................................10 4.10DEVIATIONFROMSTANDARDS................................................................................................................................10 4.11OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................10 4.12EQUIPMENTLIST.....................................................................................................................................................11 5TESTRESULTSANDMEASUREMENTDATA.....................................................................................................12 5.1ANTENNAREQUIREMENT..........................................................................................................................................12 5.2CONDUCTEDEMISSIONS...............…

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CQASZ20260501068E-01 AppendixA:DTSBandwidth TestResult TestModeFreq(MHz) DTSBW [MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict BLE_1M 24020.672401.662402.330.5PASS 24400.682439.662440.340.5PASS 24800.702479.662480.370.5PASS TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 AppendixB:OccupiedChannelBandwidth TestResult TestModeAntennaFreq(MHz) OCB[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict BLE_1MAnt1 24021.0232401.48452402.5075------ 24401.0152439.48852440.5035------ 24801.0232479.48452480.5075------ TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 AppendixC:Maximumconductedoutputpower TestResultPeak TestModeFreq(MHz) ConductedPeak Powert[dBm] Conducted Limit[dBm] Verdict BLE_1M 24021.11≤30PASS 24401.96≤30PASS 24801.20≤30PASS TestGraphsPeak BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 AppendixD:Maximumpowerspectraldensity TestResult TestModeFreq(MHz)Result[dBm/3kHz]Limit[dBm/3kHz]Verdict BLE_1M 2402-13.79≤8.00PASS 2440-12.87≤8.00PASS 2480-13.77≤8.00PASS TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 AppendixF:Bandedgemeasurements TestResult TestModeChNameFreq(MHz)RefLevel[dBm]Result[dBm]Limit[dBm]Verdict BLE_1M Low24020.37-42.53≤-19.63PASS High24800.58-42.73≤-19.42PASS TestGraphs BLE_1M_Ant1_Low_2402 BLE_1M_Ant1_High_2480 AppendixG:ConductedSpuriousEmission TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna FrequencyRange (MHz) Ref Level (MHz) Max Power (dBm) Limit (dBm) Verdict 1NTNVBLE24021MbpsANT1 Reference0.1-0.42// 30～10000.1-47.58≤-20.42Pass 1000～265000.1-36.36≤-20.42Pass 2NTNVBLE24401MbpsANT1 Reference0.1-1// 30～10000.1-48.30≤-21.00Pass 1000～265000.1-36.75≤-21.00Pass 3NTNVBLE24801MbpsANT1 Reference0.1-0.72// 30～10000.1-47.74≤-20.72Pass 1000～265000.1-36.39≤-20.72Pass TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps AppendixH:DutyCycle TestResult TestModeFreq(MHz) ONTime [ms] Period [ms] XDC [%] xFactor LimitVerdict BLE_1M 24022.162.500.864086.400.63------ 24402.162.500.864086.400.63------ 24802.162.500.864086.400.63------ TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 AppendixI:EmissionsinRestrictedBands TestResult TestModeAntennaChName Freq(MHz ) Detector Freq [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict BLE_1MAnt1 Low2402 AV2310.000-65.14≤-41.2030.06≤54PASS AV2340.326-63.03≤-41.2032.17≤54PASS AV2390.000-64.26≤-41.2030.94≤54PASS Peak2310.000-56.55≤-21.2038.65≤74PASS Peak2341.848-52.87≤-21.2042.33≤74PASS Peak2390.000-54.77≤-21.2040.43≤74PASS High2480 AV2483.500-58.23≤-41.2036.97≤54PASS AV2483.565-58.41≤-41.2036.79≤54PASS AV2500.000-64.92≤-41.2030.28≤54PASS Peak2483.500-43.42≤-21.2051.78≤74PASS Peak2485.188-38.16≤-21.2057.04≤74PASS Peak2500.000-56.66≤-21.2038.54≤74PASS Note： 1.TheAntennaGainiscompensatedinthegraph. 2.ThelimitindBmforaveragedetectorisconversionfrom54dBuV/m,accordingto15.209(a).Th elimitindBmforpeakdetectoris20dBabovethelimitofaveragedetectorindBm. 3.Offset=Attenuator+Gain(2dBi) TestGraphs BLE_1M_Ant1_Low_2402_AV BLE_1M_Ant1_Low_2402_Peak BLE_1M_Ant1_High_2480_AV BLE_1M_Ant1_High_2480_Peak

1Photographs-EUTTestSetup 1.1RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: Above1GHz: 1.2 ConductedEmission 1.3 RFConductedmeasurement