2BPUV-TK60smart ring

smart ring FCC Requirement Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment.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.

DongguanHuikangIntelligentTechnologyCo.,Ltd. Room101,No.3,HumenNanxinRoad,HumenTown，DongguanCity,Guangdong Province,China FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 Date ：September11,2026 U.S.AgentDesignation {DongguanHuikangIntelligentTechnologyCo.,Ltd.}acknowledgestheirconsentforthefollowingcontact locatedintheUnitedStatestoactastheiragentforserviceofprocessfortheequipmentforwhichauthorizationis sought(FCCID:2BPUV-TK60): NameandcompanyofU.S.agent:BridgeportAdvisoryLLC PhysicalU.S.addressofagent:3330W38THPL,CHICAGO,IL60632,UnitedStates FRNofU.S.agent:0037566148 EmailaddressofU.S.agent:[email protected] ContactNO.:(708)680-6688 BridgeportAdvisoryLLCacknowledgestheirobligationtoacceptserviceofprocessonbehalfof{Dongguan HuikangIntelligentTechnologyCo.,Ltd.}. {DongguanHuikangIntelligentTechnologyCo.,Ltd.}withtheFRN[0037091790]acceptsitsobligationto maintainanagentforserviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,ortheconclusion ofanyCommission-relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheverislater. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirementslistedunder§ 2.911(d)(7). TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB 986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotify theFCCwithin30daysviathegrantingTCB. Sincerely, Signature ShengjieZhan Manager DongguanHuikangIntelligentTechnologyCo.,Ltd. Signature MrYongLiu ManagingMember BridgeportAdvisoryLLC 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BPUV-TK60 TK60, F50, F60, F80, F90, F100, F200, F300, TK80, TK90, TK100, C50, C60, C80, C90, C100 We, Applicant Company Name: Dongguan Huikang Intelligent Technology Co., Ltd. Address: Room 101, No. 3, Humen Nanxin Road, Humen Town, Dongguan City, Guangdong Province, China Phone: +86-13603034005 certify 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of ist successors and assignees. We certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-09-09 Signature Date Name / Title: Shengjie Zhan / Manager Company: Dongguan Huikang Intelligent Technology Co., Ltd. Address: Room 101, No. 3, Humen Nanxin Road, Humen Town, Dongguan City, Guangdong Province, China Phone: +86-13603034005 Fax: N/A E-Mail: [email protected]

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID Model name 2BPUV-TK60 TK60, F50, F60, F80, F90, F100, F200, F300, TK80, TK90, TK100, C50, C60, C80, C90, C100 Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons: Compliance Evaluation process Results Inherent compliance The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software Compliance The memory used does not allow the running the cybersecurity and/or anti-virus software Compliance The storage capacity does not allow the running the cybersecurity and/or anti-virus software Compliance The operating system used is not capable of running the cybersecurity and/or anti-virus software Compliance No inherent compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen Huaxia Testing Technology Co., Ltd Contact Name: Yoyo Zhou Address: 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China Phone: +86-755-26648642 Email: [email protected] Signature: Date: 2025-08-26

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BPUV-TK60 TK60, F50, F60, F80, F90, F100, F200, F300, TK80, TK90, TK100, C50, C60, C80, C90, C100 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-09-09 Signature Date Name / Title: Shengjie Zhan / Manager Company: Dongguan Huikang Intelligent Technology Co., Ltd. Address: Room 101, No. 3, Humen Nanxin Road, Humen Town, Dongguan City, Guangdong Province, China Phone: +86-13603034005 Fax: N/A E-Mail: [email protected]

DongguanHuikangIntelligentTechnologyCo.,Ltd. ModelConfirmationLetter We,DongguanHuikangIntelligentTechnologyCo.,Ltd.certifytheproduct: smartring ModelNo.:TK60,F50,F60,F80,F90,F100,F200,F300,TK80,TK90,TK100,C50,C60, C80,C90,C100 FCCID: 2BPUV-TK60 Theirelectricalcircuitdesign,layout,componentsusedandinternalwiringareidentical, Onlytheappearanceweredifferent. Signiture: GranteeContact:ShengjieZhan CompanyName:DongguanHuikangIntelligentTechnologyCo.,Ltd. Date:September9,2026

ReportNo.:CQASZ20260801799E Photographs-EUTConstructionalDetails FCC ID: 2BPUV-TK60 ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E

ReportNo.:CQASZ20260801799E Photographs-EUTConstructionalDetails FCC ID: 2BPUV-TK60 ReportNo.:CQASZ20260801799E ReportNo.:CQASZ20260801799E

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)showninthisreportreferonlytothe sample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.: CQASZ20260801799E-02 Applicant:DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofApplicant:Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince EquipmentUnderTest(EUT): EUTName:smartring ModelNo.:TK60,F50,F60,F80,F90,F100,F200,F300,TK80,TK90,TK100,C50,C60, C80,C90,C100 TestModelNo.:TK60 BrandName:N/A FCCID:2BPUV-TK60 Standards: 47CFRPart1.1307 47CFRPart1.1310 KDB447498D01GeneralRFExposureGuidancev06 DateofReceipt:2026-08-18 DateofTest:2026-08-18to2026-08-28 DateofIssue:2026-9-10 TestResult:PASS TestedBy: (AzirWang) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-02 Page: 2 of 6 1.Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260801799E-02Rev.01 Initialreport 2026-9-10 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-02 Page: 3 of 6 2.Contents 1.VERSION....................................................................................................................................................................................2 2.CONTENTS................................................................................................................................................................................3 3.GENERALINFORMATION....................................................................................................................................................4 4.CLIENTINFORMATION........................................................................................................................................................4 5.GENERALDESCRIPTIONOFEUT......................................................................................................................................4 RFEXPOSUREEVALUATION..................................................................................................................................................5 RFEXPOSURECOMPLIANCEREQUIREMENT.............................................................................................................................5 StandardRequirement........................................................................................................................................................5 Limits......................................................................................................................................................................................5 EUTRFExposure................................................................................................................................................................6 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-02 Page: 4 of 6 3.GeneralInformation 4.ClientInformation Applicant: DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofApplicant: Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince Manufacturer: DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofManufacturer: Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince Factory: DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofFactory: Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince 5.GeneralDescriptionofEUT ProductName:smartring ModelNo.:TK60,F50,F60,F80,F90,F100,F200,F300,TK80,TK90,TK100,C50, C60,C80,C90,C100 TestModelNo.:TK60 TradeMark:N/A SoftwareVersion: 08 HardwareVersion: V1.4 ModulationType: GFSK TransferRate: 1Mbps/2Mbps NumberofChannel: 40 AntennaType: Ceramicantenna AntennaGain: 0.98dBi ProductType: MobilePortable PowerSupply: Ring:Li-ionbattery:DC3.7V18mAh,ChargebyDC3.7VforChargingbox SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-02 Page: 5 of 6 RFExposureEvaluation RFExposureComplianceRequirement StandardRequirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06 4.3.1.StandaloneSARtestexclusionconsiderations UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1- gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARExclusionThresholdcondition,listedbelow,issatisfied. Limits The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation17 Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-02 Page: 6 of 6 EUTRFExposure 1)ForBLE MeasurementData Worstcase:GFSK TestChannel PeakOutputPower (dBm) Tuneuptolerance (dBm) Maximumtune-upPower (dBm)(mW) Lowest(2402MHz) 0.110±111.259 Middle(2440MHz) -0.41-0.5±10.51.122 Highest(2480MHz) -0.200±111.259 Worstcase:GFSK Channel MaximumtuneupPower (mW) Calculatedvalue Exclusion threshold Lowest (2402MHz) 1.2590.390 3.0 Middle (2440MHz) 1.1220.351 Highest (2480MHz) 1.2590.397 Conclusion:thecalculatedvalue≤3.0,SARisexempted. Remark:TheMaxConductedPeakOutputPowerdatarefertoreportReportNo.:CQASZ20260801799E-01 ***ENDOFREPORT***

SMDCERAMICANTENNA DataSheet TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN . TS3216E245D05 For2400-2484MHz 3.2x1.6mm[EIA1206] Rev.1.1|1 SHAPES AND DIMENSIONSDimensions inmm FEATURES ・Lightweight,compact ・ Widebandwidth,lowcost ・ Built-inantennawithhighgain ・ Operating Temp. : -40°C~+85°C APPLICATIONS ・ Bluetooth ・ IEEE802.11g/b ・ Zigbeesystems,etc... ・ Home RF system, etc Rev.1.1|2 DataSheet SMDCERAMICANTENNA TS3216E245D05 LW A A1H 3.2±0.11.6±0.10.15±0.05 0.4±0.150.55±0.1 正面 底面 ✷切記: SMT貼片需黑色面朝上 TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN PARTNUMBERINGSYSTEM TS -3216 -E - Brand Dimension Material 245-D -05 FrequencyFeeding modeType Rev.1.1|3 DataSheet SMDCERAMICANTENNA Electrical Characteristics per line(TA=25°C) T yp icalCharacteristics Fig.1VSW R 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 2200 2300 2600 24002500 Frequency[MHz] 2700 V . S . W . R . Parameter Specification Units FrequencyBand 2400~2483 MHz P o l a riz at i o n Linear P eakGa in 0.98 dB i Im p endance 50  TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN Rev.1.1|4 DataSheet SMDCERAMICANTENNA RadiationPattern Th eGa inp atte rni smeasu r edi n FAR - fi e l dc h a m be r .DU T isplacedon t h etab l e o fr otato r ,asta n da r dho r na n te nn aa n dVecto rN et w o rk Analyzerisusedtocollect data. Fig.2FAR-fieldChamber 3DGainPattern(2400MHz) TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN Rev.1.1|5 DataSheet SMDCERAMICANTENNA 3DGainPattern(2450MHz) 3DGainPattern(2500MHz) TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN Rev.1.1|6 DataSheet SMDCERAMICANTENNA Gain（dB） Eiciency（%） TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN Rev.1.1|7 DataSheet SMDCERAMICANTENNA Item Condition Specification Thermalshock 1.30±3minutesat-40°C±5°C, 2.Convertto+105°C(5minutes) 3.30±3minutesat+105°C±5°C, 4.Convertto-40°C(5minutes) 5.Total100continuouscycles Noapparentdamage Fulfilltheelectrical spec.aftertest. Humidityresistance 1.Humidity:85%R.H. 2.Temperature:85±5°C 3.Time:1000hours. Noapparentdamage Fulfilltheelectrical spec.aftertest. Hightemperature resistance Noapparentdamage Fulfilltheelectrical spec.aftertest. 1.Temperature:150°C±5°C 2.Time:1000hours. Lowtemperature resistance 1.Temperature:-40°C±5°C 2.Time:1000hours. Noapparentdamage Fulfilltheelectrical spec.aftertest. Solderingheatresistance 1.Solderbathtemperature:260±5°C 2.Bathingtime:10±1seconds Noapparentdamage Solderability Thedippedsurfaceoftheterminalshallbe atleast95%coveredwithsolderafterdipped insolderbathof245±5°Cfor3±1seconds. Noapparentdamage (2))StorageCondition (a)Atwarehouse:Thetemperatureshouldbewithin0~30°Candhumidityshould be lessthan60%RH.Theproductshouldbeusedwithin1yearfromthetimeof elivery. (b)Onboard:Thetemperature shouldbewithin-40~85°Candhumidityshould belessthan85%RH. (3)OperatingTemperatureRange Operatingtemperaturerange:-40°Cto+85°C. Recommended ReflowSoldercurve TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN PACKAGINGSTYLE REELDIMENSIONS Rev.1.1|8 DataSheet SMDCERAMICANTENNA (1))SolderingGunProcedure Notethefollows,incaseofusingsoldergunforreplacement. (a)Thetiptemperaturemustbelessthan350°Cfortheperiodwithin3 seconds byusingsolderinggununder30W. (b)Thesolderingguntipshallnottouchthisproductdirectly. (2)SolderingVolume Notethatexcessofsolderingvolumewilleasilygetcrackthebodyof thisproduct. TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN Device Package NetWeight Carrier Quantity HSFStatus TS3216E245D05 3216 0.0089g Tape&Reel 5000pcs RoHScompliant Date RevisionDescriptionofchanges 2018-11-5V1.0 FirstVersion 2025-4-10 V1.1 Second Version OrderInformation Revisionhistor y Thecontentsofthisdatasheetaresubjecttochangewithoutnotice. Pleaseconfirmthespecificationsanddeliveryconditionswhenplacingyourorder. ©Copyright2015，Allrightsreserved Rev.1.1|9 DataSheet SMDCERAMICANTENNA TAPEDIMENSIONS Feature S p ecifications Tolerances W 8 .00±0.30 P4.00±0.10 E 1.75± 0 .1 0 F3.50±0.10 P22.00±0.10 D1.50 + 0.10 - 0 . 00 P o 4. 00 ± 0 .1 0 10Po40.00±0.20 TypingQuantity:5000pieces per7” reel TSUN TECHNOLOGY CO., LTD 3F, NO.389, SECTION 2,DIDING AVENUE,NEIHU DISTRICT,TAIPEI CITY,TAIWAN

1 CQASZ20260801799E-01 2 Summary NO.ItemVerdict 1DTSBandwidthPass 2OccupiedChannelBandwidthPass 3MaximumconductedoutputpowerPass 4MaximumpowerspectraldensityPass 5BandedgemeasurementsPass 6ConductedSpuriousEmissionPass 7DutyCyclePass 3 AppendixA:DTSBandwidth TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna 6dBOccupy Bandwidth (MHz) FL (MHz) FH (MHz) Limit (MHz) Verdict 1NTNVBLE24021MbpsANT10.682401.662402.34≥0.5Pass 2NTNVBLE24401MbpsANT10.682439.662440.34≥0.5Pass 3NTNVBLE24801MbpsANT10.682479.662480.34≥0.5Pass 4NTNVBLE24022MbpsANT11.142401.422402.57≥0.5Pass 5NTNVBLE24402MbpsANT11.142439.422440.57≥0.5Pass 6NTNVBLE24802MbpsANT11.142479.422480.57≥0.5Pass 4 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps NTNV_BLE_2402_2Mbps 5 NTNV_BLE_2440_2Mbps NTNV_BLE_2480_2Mbps 6 AppendixB:OccupiedChannelBandwidth TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna 99%OBW (MHz) Limit (MHz) FL (MHz) FH (MHz) Verdict 1NTNVBLE24021MbpsANT11.07-2401.472402.54Pass 2NTNVBLE24401MbpsANT11.06-2439.472440.54Pass 3NTNVBLE24801MbpsANT11.04-2479.482480.53Pass 4NTNVBLE24022MbpsANT11.91-2401.052402.96Pass 5NTNVBLE24402MbpsANT11.90-2439.062440.96Pass 6NTNVBLE24802MbpsANT11.91-2479.052480.96Pass 7 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps NTNV_BLE_2402_2Mbps 8 NTNV_BLE_2440_2Mbps NTNV_BLE_2480_2Mbps 9 AppendixC:Maximumconductedoutputpower TestResult NO. Test Condition Test Mode Freq (MHz) DetectorAntenna Conducted PeakPower (dBm) Conducted Limit (dBm) Verdict 1NTNVBLE2402PeakANT1-1.75≤30Pass 2NTNVBLE2440PeakANT1-2.27≤30Pass 3NTNVBLE2480PeakANT1-0.01≤30Pass 4NTNVBLE2402PeakANT10.11≤30Pass 5NTNVBLE2440PeakANT1-0.41≤30Pass 6NTNVBLE2480PeakANT1-0.20≤30Pass 10 TestGraphs NTNV_BLE_2402_1Mbps_Peak NTNV_BLE_2440_1Mbps_Peak NTNV_BLE_2480_1Mbps_Peak NTNV_BLE_2402_2Mbps_Peak 11 NTNV_BLE_2440_2Mbps_Peak NTNV_BLE_2480_2Mbps_Peak 12 AppendixD:Maximumpowerspectraldensity TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna Power SpectralDensity (dBm/3kHz) Limit (dBm/3kHz) Verdict 1NTNVBLE24021MbpsANT1-15.24≤8Pass 2NTNVBLE24401MbpsANT1-15.71≤8Pass 3NTNVBLE24801MbpsANT1-13.43≤8Pass 4NTNVBLE24022MbpsANT1-16.25≤8Pass 5NTNVBLE24402MbpsANT1-16.86≤8Pass 6NTNVBLE24802MbpsANT1-16.56≤8Pass 13 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps NTNV_BLE_2402_2Mbps 14 NTNV_BLE_2440_2Mbps NTNV_BLE_2480_2Mbps 15 AppendixE:Bandedgemeasurements TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna Reference (dBm) EmissionLevel (dBm) Limit (dBm) Verdict 1NTNVBLE24021MbpsANT1-1-45.39≤-21Pass 2NTNVBLE24801MbpsANT10.86-43.13≤-19.14Pass 3NTNVBLE24022MbpsANT10.67-40.11≤-19.33Pass 4NTNVBLE24802MbpsANT1-1.16-44.76≤-21.16Pass 16 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2480_1Mbps NTNV_BLE_2402_2Mbps NTNV_BLE_2480_2Mbps 17 18 AppendixF:ConductedSpuriousEmission TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna FrequencyRange (MHz) Ref Level (MHz) Max Power (dBm) Limit (dBm) Verdict 1NTNVBLE24021MbpsANT1 Reference0.10.39// 30～10000.1-44.73≤-19.61Pass 1000～265000.1-34.15≤-19.61Pass 2NTNVBLE24401MbpsANT1 Reference0.1-0.11// 30～10000.1-44.72≤-20.11Pass 1000～265000.1-33.36≤-20.11Pass 3NTNVBLE24801MbpsANT1 Reference0.12.21// 30～10000.1-45.19≤-17.79Pass 1000～265000.1-33.72≤-17.79Pass 4NTNVBLE24022MbpsANT1 Reference0.11.66// 30～10000.1-44.63≤-18.34Pass 1000～265000.1-34.05≤-18.34Pass 5NTNVBLE24402MbpsANT1 Reference0.11.15// 30～10000.1-45.08≤-18.85Pass 1000～265000.1-33.28≤-18.85Pass 6NTNVBLE24802MbpsANT1 Reference0.11.36// 30～10000.1-45.44≤-18.64Pass 1000～265000.1-34.01≤-18.64Pass 19 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps 20 NTNV_BLE_2480_1Mbps 21 NTNV_BLE_2402_2Mbps 22 NTNV_BLE_2440_2Mbps 23 NTNV_BLE_2480_2Mbps 24 25 AppendixG:DutyCycle TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna T_On (ms) Period (ms) DutyCycyle CorrectionFactor (dB) MaxDC Variation (%) 1NTNVBLE24021MbpsANT12.142.500.8685.55 2NTNVBLE24401MbpsANT12.142.500.8685.55 3NTNVBLE24801MbpsANT12.142.500.8685.55 4NTNVBLE24022MbpsANT11.081.250.8786.70 5NTNVBLE24402MbpsANT11.081.250.8786.60 6NTNVBLE24802MbpsANT11.081.250.8786.60 26 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps NTNV_BLE_2402_2Mbps 27 NTNV_BLE_2440_2Mbps NTNV_BLE_2480_2Mbps

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.:CQASZ20260801799E-01 Applicant:DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofApplicant:Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince EquipmentUnderTest(EUT): Product:smartring ModelNo.:TK60,F50,F60,F80,F90,F100,F200,F300,TK80,TK90,TK100,C50,C60, C80,C90,C100 TestModelNo.:TK60 BrandName:N/A FCCID:2BPUV-TK60 Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-08-18 DateofTest:2026-08-18to2026-08-28 DateofIssue:2026-9-10 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (AzirWang) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-01 Page: 2 of 31 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260801799E-01Rev.01Initialreport2026-9-10 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801799E-01 Page: 3 of 31 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.:CQASZ20260801799E-01 Page: 4 of 31 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............................................................................................................................................13 5.3CONDUCTEDPEAKOUTPUTPOW…

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ReportNo.:CQASZ20260801799E 1Photographs-EUTTestSetup 1.1RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: FCC ID: 2BPUV-TK60 ReportNo.:CQASZ20260801799E Above1GHz: 1.2 ConductedEmission ReportNo.:CQASZ20260801799E 1.3 RFConductedmeasurement