2BPUV-V80smart ring

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DongguanHuikangIntelligentTechnologyCo.,Ltd. Room101,No.3,HumenNanxinRoad,HumenTown，DongguanCity,Guangdong Province,China FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 Date ：September9,2026 U.S.AgentDesignation {DongguanHuikangIntelligentTechnologyCo.,Ltd.}acknowledgestheirconsentforthefollowingcontact locatedintheUnitedStatestoactastheiragentforserviceofprocessfortheequipmentforwhichauthorizationis sought(FCCID:2BPUV-V80): 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-V80 V80, V90, V91, V100, V200, V220, V280, V300, V320, V360, V60, E80, E88, E89, E90 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-V80 V80, V90, V91, V100, V200, V220, V280, V300, V320, V360, V60, E80, E88, E89, E90 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-V80 V80, V90, V91, V100, V200, V220, V280, V300, V320, V360, V60, E80, E88, E89, E90 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.:V80,V90,V91,V100,V200,V220,V280,V300,V320,V360,V60,E80,E88, E89,E90 FCCID:2BPUV-V80 Theirelectricalcircuitdesign,layout,componentsusedandinternalwiringareidentical, Onlytheappearanceandcolorweredifferent. Signiture: GranteeContact:ShengjieZhan CompanyName:DongguanHuikangIntelligentTechnologyCo.,Ltd. Date:September9,2026

ReportNo.:CQASZ20260801797E Photographs-EUTConstructionalDetails FCC ID: 2BPUV-V80 ReportNo.:CQASZ20260801797E ReportNo.:CQASZ20260801797E ReportNo.:CQASZ20260801797E

ReportNo.:CQASZ20260801797E Photographs-EUTConstructionalDetails FCC ID: 2BPUV-V80 ReportNo.:CQASZ20260801797E

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.: CQASZ20260801797E-02 Applicant:DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofApplicant:Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince EquipmentUnderTest(EUT): EUTName:smartring ModelNo.:V80,V90,V91,V100,V200,V220,V280,V300,V320,V360,V60,E80,E88, E89,E90 TestModelNo.:V80 BrandName:N/A FCCID:2BPUV-V80 Standards: 47CFRPart1.1307 47CFRPart1.1310 KDB447498D01GeneralRFExposureGuidancev06 DateofReceipt:2026-08-17 DateofTest: 2026-08-17to2026-08-24 DateofIssue: 2026-9-8 TestResult:PASS TestedBy: (AzirWang) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801797E-02 Page: 2 of 6 1.Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260801797E-02Rev.01 Initialreport 2026-9-8 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801797E-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.:CQASZ20260801797E-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.:V80,V90,V91,V100,V200,V220,V280,V300,V320,V360,V60,E80,E88,E89, E90 TestModelNo.:V80 TradeMark:N/A SoftwareVersion: 08 HardwareVersion: V1.4 ModulationType: GFSK TransferRate: 1Mbps NumberofChannel: 40 AntennaType: Chipantenna AntennaGain: 2.28dBi ProductType: MobilePortable PowerSupply: Chargingbox:Li-ionbattery:DC3.8V400mAh,ChargebyDC5Vfor adapter Ring:Li-ionbattery:DC3.7V16mAh,ChargebyDC3.7VforChargingbox SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801797E-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.:CQASZ20260801797E-02 Page: 6 of 6 EUTRFExposure 1)ForBLE MeasurementData Worstcase:GFSK TestChannel PeakOutputPower (dBm) Tuneuptolerance (dBm) Maximumtune-upPower (dBm)(mW) Lowest(2402MHz) -3.17-3.0±1-2.00.631 Middle(2440MHz) -2.72-2.5±1-1.50.708 Highest(2480MHz) -2.00-2.0±1-1.00.794 Worstcase:GFSK Channel MaximumtuneupPower (mW) Calculatedvalue Exclusion threshold Lowest (2402MHz) 0.6310.196 3.0 Middle (2440MHz) 0.7080.221 Highest (2480MHz) 0.7940.250 Conclusion:thecalculatedvalue≤3.0,SARisexempted. Remark:TheMaxConductedPeakOutputPowerdatarefertoreportReportNo.:CQAS…

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承 認 書 SPECIFICATION FOR APPROVAL 客戶名稱 CUSTOMER ： 客戶料號 CUSTOMER’S P/N ： 料號 PART NUMBER ： WAN1608H245H08 規格 DESCRIPTION ： Chip Antenna 1608 MH-Ant 2.45G Type H08 版本 VERSION ： V1.2 日期 ISSUE DATE ： 2023/07/18 客 戶 承 認 CUSTOMER APPROVED 工 程 部 R&D CENTER 承 認 APPROVAL 確 認 CHECKED 製 作 DRAWN Ray Tennyson Snow 萬誠科技股份有限公司 OneWave Electronic Co., Ltd. 112台北市北投區立功街151號1樓 1F, No. 151, Li Gong Street, Beitou District, Taipei City 112, Taiwan 電話: (02) 2898-2220 TEL: +886 2 2898-2220 傳真: (02) 2898-5055 FAX: +886 2 2898-5055 ONEWAVE TECHNOLOGY CO., LTD. 2/13 1608 Chip antenna For Bluetooth / WLAN Applications Dimension (mm) L 1.70 ± 0.20 W 0.93 ± 0.20 T 0.75 ± 0.20 P/N: WAN1608H245H08 ONEWAVE TECHNOLOGY CO., LTD. 3/13 Part Number Information WAN 1608 H 245 H 08 A B C D E F A Product Series Antenna B Dimension L x W 1.6X0.8mm (+-0.2mm) C Material High K material D Working Frequency 2.4 ~ 2.5GHz E Feeding mode Monopole & Single Feeding F Antenna type Type = 08 1.Electrical Specification Remark : Bandwidth & Peak Gain was measured under evaluation board of next page Specification Part Number WAN1608H245H08 Central Frequency 2450 MHz Bandwidth 120 (Min.) MHz Return Loss -10(Max)dB Peak Gain 2.28 dBi Impedance 50 Ohm Operating Temperature -40～+110°C Maximum Power 4 W Resistance to Soldering Heats 10 ( @ 260°C) sec. Polarization Linear Azimuth Beamwidth Omni-directional Termination Cu / Sn (Leadless) ONEWAVE TECHNOLOGY CO., LTD. 4/13 2.Recommended PCB Pattern 1.Evaluation Board Dimension (若淨空區夠大，建議在天線尾段加Trace，效能更佳) Unit : mm 2.Evaluation Board Dimension (若淨空區夠大，建議在天線尾段加Trace，效能更佳) 3.Evaluation Board Dimension ONEWAVE TECHNOLOGY CO., LTD. 5/13 Suggested Matching Circuit 重要資訊 : 匹配元件建議使用精準度高的電感±0.1~0.3nH、電容±0.1pF 1.Layout Dimensions in Clearance area(Size=5.5*4mm) 50 ohm transmission Line Matching Circuit 2.Layout Dimensions in Clearance area(Size=5.5*4mm) 50 ohm transmission Line Matching Circuit 1～10nH None 0Ω 1.5pF ONEWAVE TECHNOLOGY CO., LTD. 6/13 3.Layout Dimensions in Clearance area(Size=5*3mm) 50 ohm transmission Line Matching Circuit FootPrint (Unit : mm) ONEWAVE TECHNOLOGY CO., LTD. 7/13 3.Measurement Results Return Loss ONEWAVE TECHNOLOGY CO., LTD. 8/13 3D Radiation Pattern 2D Radiation Pattern @2400MHz @2450MHz @2500MHz Z Y X ONEWAVE TECHNOLOGY CO., LTD. 9/13 Efficiency Peak Gain Directivity 2400MHz 50.65 % 1.80 dBi 3.95 dBi 2450MHz 53.27 % 2.28 dBi 4.42 dBi 2500MHz 50.32 % 1.77 dBi 4.15 dBi Chamber Coordinate System ONEWAVE TECHNOLOGY CO., LTD. 10/13 4.Reliability and Test Condictions ITEM REQUIREMENTS TEST CONDITION Solderability 1. Wetting shall exceed 90% coverage 2. No visible mechanical damage Pre-heating temperature:150°C/60sec. Solder temperature:230±5°C Duration:4±1sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Solder heat Resistance 1. No visible mechanical damage 2. Central Freq. change :within ± 6% 10 ± 0.5 sec. 60 sec . . T E M P ( °C ) 150 °C 2 6 0 °C Pre-heating temperature:150°C/60sec. Solder temperature:260±5°C Duration:10±0.5sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Component Adhesion (Push test) 1. No visible mechanical damageThe device should be reflow soldered(230±5°C for 10sec.) to a tinned copper substrate A dynometer force gauge should be applied the side of the component. The device must with-ST-F 0.5 Kg without failure of the termination attached to component. Component Adhesion (Pull test) 1. No visible mechanical damage Insert 10cm wire into the remaining open eye bend ,the ends of even wire lengths upward and wind together. Terminal shall not be remarkably damaged. Thermal shock 1. No visible mechanical damage 2. Central Freq. change :within ±6% Phase Temperature(°C) Time(min) 1 +110±5°C 30±3 2 Room Temperature Within 3sec 3 -40±2°C 30±3 4 Room Temperature Within 3sec +110°C=>30±3min -40°C=>30±3min Test cycle:10 cycles The chip shall be stabilized at normal condition for 2~3 hours before measuring. Resistance to High Temperature 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3.No disconnection or short circuit. Temperature: +110±5°C Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. Resistance to Low Temperature 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3.No disconnection or short circuit. Temperature:-40±5°C Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. Humidity 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3.No disconnection or short circuit. Temperature: 40±2°C Humidity: 90% to 95% RH Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. 4±1 sec. 60sec TEMP (°C) 150°C 230°C ONEWAVE TECHNOLOGY CO., LTD. 11/13 5.Soldering and Mounting Mildly activated rosin fluxes are preferred. The minimum amount of solder can lead to damage from the stresses caused by the difference in coefficients of expansion between solder, chip and substrate. The terminations are suitable for all wave and re-flow soldering systems. If hand soldering cannot be avoided, the preferred technique is the utilization of hot air soldering tools. Recommended temperature profiles for re-flow soldering in Figure 1. Products attachment with a soldering iron is discouraged due to the inherent process control limitations. In the event that a soldering iron must be employed the following precautions are recommended. ‧Preheat circuit and products to 150°C ‧Never contact the ceramic with the iron tip ‧Use a 20 watt soldering iron with tip diameter of 1.0mm ‧280°C tip temperature (max) ‧1.0mm tip diameter (max) ‧Limit soldering time to 3 sec. SOLDERING COOLING NATURAL PRE-HEATING TEMPERATURE(°C) 60~120 s 10s max. 30~60s 250~260 230 180 150 TIME(sec.) Reflow Soldering SOLDERING COOLING NATURAL PRE-HEATING TEMPERATURE(°C) within 3s Gradual cooling 150 TIME(sec.) Iron Soldering Over 60s 350 300 ONEWAVE TECHNOLOGY CO., LTD. 12/13 6.Packaging Information ◆Tape Specification: W Ao Bo Ko P …

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1 CQASZ20260801797E-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 1NTNVBLE24021MbpsANT10.672401.672402.34≥0.5Pass 2NTNVBLE24401MbpsANT10.672439.672440.34≥0.5Pass 3NTNVBLE24801MbpsANT10.672479.672480.34≥0.5Pass 4 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps 5 AppendixB:OccupiedChannelBandwidth TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna 99%OBW (MHz) Limit (MHz) FL (MHz) FH (MHz) Verdict 1NTNVBLE24021MbpsANT11.03-2401.492402.52Pass 2NTNVBLE24401MbpsANT11.04-2439.482440.52Pass 3NTNVBLE24801MbpsANT11.04-2479.482480.52Pass 6 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps 7 AppendixC:Maximumconductedoutputpower TestResult NO. Test Condition Test Mode Freq (MHz) DetectorAntenna Conducted PeakPower (dBm) Conducted Limit (dBm) Verdict 1NTNVBLE2402PeakANT1-3.17≤30Pass 2NTNVBLE2440PeakANT1-2.72≤30Pass 3NTNVBLE2480PeakANT1-2.00≤30Pass 8 TestGraphs NTNV_BLE_2402_1Mbps_Peak NTNV_BLE_2440_1Mbps_Peak NTNV_BLE_2480_1Mbps_Peak 9 AppendixD:Maximumpowerspectraldensity TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna Power SpectralDensity (dBm/3kHz) Limit (dBm/3kHz) Verdict 1NTNVBLE24021MbpsANT1-17.75≤8Pass 2NTNVBLE24401MbpsANT1-17.12≤8Pass 3NTNVBLE24801MbpsANT1-16.43≤8Pass 10 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps 11 AppendixE:Bandedgemeasurements TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna Reference (dBm) EmissionLevel (dBm) Limit (dBm) Verdict 1NTNVBLE24021MbpsANT1-3.21-45.43≤-23.21Pass 2NTNVBLE24801MbpsANT1-2.19-44.99≤-22.19Pass 12 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2480_1Mbps 13 AppendixF:ConductedSpuriousEmission TestResult NO. Test Condition Test Mode Freq (MHz) RateAntenna FrequencyRange (MHz) Ref Level (MHz) Max Power (dBm) Limit (dBm) Verdict 1NTNVBLE24021MbpsANT1 Reference0.1-2.15// 30～10000.1-45.93≤-22.15Pass 1000～265000.1-34.46≤-22.15Pass 2NTNVBLE24401MbpsANT1 Reference0.1-1.66// 30～10000.1-45.50≤-21.66Pass 1000～265000.1-35.11≤-21.66Pass 3NTNVBLE24801MbpsANT1 Reference0.1-0.87// 30～10000.1-46.42≤-20.87Pass 1000～265000.1-35.01≤-20.87Pass 14 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps 15 NTNV_BLE_2480_1Mbps 16 17 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 18 TestGraphs NTNV_BLE_2402_1Mbps NTNV_BLE_2440_1Mbps NTNV_BLE_2480_1Mbps

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.:CQASZ20260801797E-01 Applicant:DongguanHuikangIntelligentTechnologyCo.,Ltd. AddressofApplicant:Room101,No.3,HumenNanxinRoad,HumenTown,DongguanCity, GuangdongProvince EquipmentUnderTest(EUT): Product:smartring ModelNo.:V80,V90,V91,V100,V200,V220,V280,V300,V320,V360,V60,E80,E88, E89,E90 TestModelNo.:V80 BrandName:N/A FCCID:2BPUV-V80 Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-08-17 DateofTest:2026-08-17to2026-08-24 DateofIssue:2026-9-8 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (AzirWang) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801797E-01 Page: 2 of 30 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260801797E-01Rev.01Initialreport2026-9-8 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260801797E-01 Page: 3 of 30 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.:CQASZ20260801797E-01 Page: 4 of 30 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 5.3CONDUCTEDPEAKOUTPUTPOWER........…

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ReportNo.:CQASZ20260801797E 1Photographs-EUTTestSetup 1.1RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: FCC ID: 2BPUV-V80 ReportNo.:CQASZ20260801797E Above1GHz: 1.2 ConductedEmission ReportNo.:CQASZ20260801797E 1.3 RFConductedmeasurement