2BSXK-VS-ST04-01Smart Tag

VS-ST04-01 SmartTagProductManual VS-ST04-01 Ver:1.0.0 VitalsiliconTechnologiesCo.,Ltd VS-ST04-01 1ProductOverview VS-ST04-01isanintelligenttagproductthatcanbeintegratedintovarious carrierssuchasclothing.Itiscapableofmonitoringthewearer'sphysiological characteristicindicatorsincludingnecktemperature,sweatvolume,indoorpositioning, movementstatus,exerciseamount,exerciseintensity,sleepquality,fatigueindexand stressindex.Thesephysiologicalcharacteristicdatacanbepresentedinadataor graphicalformthroughtheWeChatMiniProgramortheintegratedmanagement platform. 2ProductForm TheVS-ST04-01intelligenttagadoptsaflexiblepackagingprocess.Itis packagedwithfluorine-freehydrophobicwovenfabricthroughahot-pressingprocess. Meanwhile,theinternalstructureisdividedandarrangedusingEVAfoam,resulting inexcellentoverallflexibilityandbendability.Theproducthasalengthandwidthof 74*53mm,withthemaximumthicknessofthecentralareabeing4.6mm.Thewidth ofthesurroundingedgeareaismorethan10mmandthethicknessisapproximately 0.5mm,whichisusedforsewingontoapplicationcarrierssuchasclothing. SmartTag:VS-ST04-01ApplicationCase:SmartClothing(T-shirt) VS-ST04-01 VS-ST04-01 3ProductFunctions 3.1NeckTemperatureMonitoring Aftertheuserputsonthesmartclothing(takingintegrationintoaT-shirtasan example,thesamebelow),thereal-timechangesintheuser'snecktemperaturecanbe viewedthroughtheWeChatMiniProgramortheintegratedmanagementplatform. 3.2SweatVolumeMonitoring Aftertheuserputsonthesmartclothing,thereal-timechangesintheuser'sneck sweatvolumecanbeviewedthroughtheWeChatMiniProgramortheintegrated managementplatform. 3.3MovementStatusMonitoring Aftertheuserputsonthesmartclothing,thereal-timechangesintheuser's movementstatusorposturecanbeviewedthroughtheWeChatMiniProgramorthe integratedmanagementplatform,includingsomedangerousactionssuchasfalling andhandstand,andspecialalarmscanbegivenfordangerousactions. MovementStatusDescription StaticWhentheuserstaysstillinplace,the"Static"statusisdisplayed. ActiveWhentheuseriswalkingorrunning,the"Active"statusisdisplayed. LyingDownWhentheuserislyingdown,the"LyingDown"statusisdisplayed. FallingWhentheuserfallsdown,the"Falling"statusisdisplayed. HandstandWhentheuserdoesahandstand,the"Handstand"statusisdisplayed. 3.4Real-timeHigh-precisionPositioning Aftertheuserputsonthesmartclothing,withthesupportofahigh-precision indoorpositioningbasestation,thereal-timepositioningchangesandmovement trajectoryoftheusercanbeviewedthroughtheWeChatMiniProgramorthe integratedmanagementplatform. VS-ST04-01 3.5ExerciseAmountandExerciseIntensity Aftertheuserputsonthesmartclothing,indicatorssuchastheuser'sexercise amountandexerciseintensity,suchasstepcount,canbeviewedthroughtheWeChat MiniProgramortheintegratedmanagementplatform. 3.6SleepQuality Aftertheuserputsonthesmartclothing,theuser'ssleepqualitycanbeviewed throughtheWeChatMiniProgramortheintegratedmanagementplatform,including theanalysisofstatusessuchasdeepsleep,lightsleep,rapideyemovement(REM) andwakefulness,andausersleepqualityreportispresented. 3.7FatigueIndex Aftertheuserputsonthesmartclothing,thefatigueleveloftheuser'sphysical functionscanbeviewedthroughtheWeChatMiniProgramortheintegrated managementplatform.Whenthefatigueindexexceeds60duetofactorssuchas ambienttemperatureandhumidity,andactivityamount,itisrecommendedtosuspend activitiesandrestforrecovery. 3.8StressIndex Aftertheuserputsonthesmartclothing,theuser'sbehavioralstressindexcanbe viewedthroughtheWeChatMiniProgramortheintegratedmanagementplatform. Whenthestressindexisrelativelyhigh,itisrecommendedthattheuserrelax appropriatelyandadjustpsychologicalstress. 4ProductUsageInstructions Takingsmartclothingasanexample,whenusingitforthefirsttime,itis necessarytoshaketheclothing,andthensendaspecificcommandthroughthe WeChatMiniProgramortheintegratedmanagementplatformtoactivatetheproduct. Onlyafteractivationcanitbeusednormally. VS-ST04-01 Aftertheproductisactivated,whentheuserputsonthesmartclothing,the intelligenttagwillbeawakenedfromthedormantstate,andtheWeChatMini Programortheintegratedmanagementplatformwilldisplaytheuser'sphysiological characteristicdata,asdescribedintheproductfunctionsinSection3.Whenthe systemdetectsthattheusertakesoffthesmartclothing,theintelligenttagwill re-enterthedormantstate. 5ScopeofApplication Thisproductisapplicabletoanyclothing/hometextilecarriers,suchasT-shirts, downjackets,jackets,outdoorjackets,pants,sleepingbags,pajamas,etc. 6SafetyRequirementsandPrecautions Pleaseensurethatthetagpartofthesmartclothingisindirectcontactwiththe skin;otherwise,thecollecteddatawillbeinaccurate. Pleaseensurethatthesmartclothingisusedundertherequiredoperating environmentconditions(seeTechnicalParameters).Usingitinanenvironment thatdoesnotmeettheconditionswillcausemeasurementerrors. Donotmodifyordisassemblethisproductinanyform,anddonotimpact, squeezeorputitintofire. Donotplaceitinahigh-temperatureenvironmentorunderdirectsunlight.Ifitis placedinfireorheatedtoabove100°C,thereisariskoffireandexplosion. Thisproductisnotamedicaldeviceandisnotusedformedicalpurposes. 7StorageandTransportation Thetransportationtoolsforthisproductshouldbecleanandfreeofpollution. Whentransportingtheproduct,itisnecessarytoavoidexposuretosunlightand rain,anditmustnotbemixedwithtoxic,harmful,odorousitemsoritemsthat VS-ST04-01 affectproductqualityforloadingandtransportation. Whenhandling,pleasetakeandplaceitgentlytopreventimpactandsevere vibration. Thepackagingshouldbefirm,moisture-proof,clean,beautifulandfreeofodors, andeasyforloading,unloading,storageandtransportation. Whenwashingthisproduct,donotusestrongoxidizingdetergentsor disinfectants.Thewashingwatertemperatureordryingtemperatureshouldnotbe higherthan50°C.Whendrying,avoidhigh-temperatureenvironmentsordirect sunlight. Donotstoreitinahigh-temperatureenvironmentorunderdirectsunlight. Itshouldbestoredinacool,ventilatedanddryspace,andmustnotbestored togetherwithtoxic,harmful,odorous,volatileorcorrosiveitems. 8MainTechnicalParameters NameSmartTagSize74*53*4.6mm CommunicationBluetooth4.2Weight ＜1…

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VitalsiliconTechnologiesCo.,Ltd. CoveredEquipmentCertificationAttestationLetter 11/20/2025 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa K1V1H2 Canada ATTN.:ReviewingEngineer FCCID:2BSXK-VS-ST04-01 VitalsiliconTechnologiesCo.,Ltd.(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. VitalsiliconTechnologiesCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. VitalsiliconTechnologiesCo.,Ltd.(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedor providedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees,including equipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsandassignees) cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446D01 CoveredEquipmentGuidancesectionB(2a). Printedname:YangWang Title:QualityDirector CompanyName:VitalsiliconTechnologiesCo.,Ltd. Date:11/20/2025

VitalsiliconTechnologiesCo.,Ltd. 11/20/2025 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa,Ontario,Canada K1V1H2 REQUESTFORCONFIDENTIALITY-FCC FCCID:2BSXK-VS-ST04-01 PursuanttoSections0.457(d)(1)(ii)and0.459oftheCommission’sRulesandFCCGuidance document726920,weherebyrequestconfidentialtreatmentofinformationaccompanyingthis applicationasoutlinedbelow: PERMANENTLONG-TERMCONFIDENTIALITY: Schematics BlockDiagrams TheoryofOperation Theaboveinformationcontainstradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthisinformationmightbeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors.TheApplicantunderstandsthatpursuanttoRule 0.457(d)(1)(ii),disclosureofthisApplicationandallaccompanyingmaterialswillnotbemadebefore thedateoftheGrantforthisApplication. Sincerely, Printedname:YangWang Title:QualityDirector

VitalsiliconTechnologiesCo.,Ltd. ProductSimilarityDeclaration Productname:SmartTag Modelname:VS-ST04-01,VS-ST04-XX,VS-ST05-XX,VS-SC04-XX, VS-SC05-XX("XX"referstonumbersrangingfrom01to99) FCCID:2BSXK-VS-ST04-01 We(VitalsiliconTechnologiesCo.,Ltd.)herebystatethatallthe modelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign(circuitdesign,PCBLayout,RF module/circuit,antennatype(s)andantennalocation,components onPCB,etc.,),samemechanicalstructureanddesign(including productenclosure,materials,etc.,),Themaininspectionmodel andthecoveredmodeldifferonlyinmodelnumberandsales region. Printedname:YangWang CompanyName:VitalsiliconTechnologiesCo.,Ltd. Date:November20,2025

FCCID:2BSXK-VS-ST04-01 FCCID:2BSXK-VS-ST04-01 FCCID:2BSXK-VS-ST04-01

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FCCID:2BSXK-VS-ST04-01 ANT FCCID:2BSXK-VS-ST04-01

Page 1 of 2 RF EXPOSURE EVALUATION FCC ID: 2BSXK-VS-ST04-01 Model difference: The main inspection model and the covered model differ only in model number and sales region; the circuit design, PCB layout, components used, internal wiring, and functions of the above models are identical. Product Name : Smart Tag Model Name : VS-ST04-01 Additional Model : VS-ST04-XX, VS-ST05-XX, VS-SC04-XX, VS-SC05-XX ("XX" refers to numbers ranging from 01 to 99) Bluetooth Version : BT 4.2 BLE Operating frequency : 2402-2480MHz Numbers of Channel : 40 channels For DTS Antenna Type : integrated antenna Antenna Gain : -0.68 dBi Type of Modulation : GFSK Power supply : DC 3V Hardware Version : V1.0 Software Version : V1.1 Page 2 of 2 Standard Requirement According to § 15.247(i) and § 1.1307b(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission’s guidelines. See KDB 447498 D01 General RF Exposure Guidance v06, section 4. 3. 1. The 1-g and 10-g SAR test exclusion thresholds for 100MHz to 6GHz at test separation distances ≤ 50mm are determined by: [ (max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]*[ √f(GHz)] ≤3.0 for 1-g SAR and ≤7.5 for 10-g SAR extremity SAR, where ⚫ f(GHz) is the RF channel transmit frequency in GHz ⚫ Power and distance are rounded to the nearest mW and mm before calculation ⚫ The result is rounded to one decimal place for comparison. The test exclusions are applicable only when the minimum test separation distance is ≤ 50mm and for transmission frequencies between 100MHz and 6GHz. When the minimum test separation distance is <5mm, a distance of 5mm is applied to determine SAR test exclusion. Routine SAR evaluation refers to that specifically required by § 2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (mW) Distance (mm) Calculation results Limit Operating Mode 2480 4.88 4.88±1 3.872576 5 1.219708 3 BLE_1M According to KDB 447498, The device only support BT function, and no simultaneous SAR measurement is required. Signature Simon Pu Manager Date: 2025-09-18

Page 1 of 58 FCC TEST REPORT FCC ID: 2BSXK-VS-ST04-01 Product : Smart Tag Model Name : VS-ST04-01, VS-ST04-XX, VS-ST05-XX, VS-SC04-XX, VS- SC05-XX ("XX" refers to numbers ranging from 01 to 99) Brand : Vitalsilicon Report No. : PTC25082012703E-FC01 Prepared for Vitalsilicon Technologies Co., Ltd. Room 701, Block B, Building 7, No.36 Changsheng South Road, Jiaxing City, Zhejiang Province Prepared by Precise Testing & Certification Co., Ltd Building 1, No. 6, Tongxin Road, Dongcheng Street, Dongguan, Guangdong, China Report No.: PTC25082012703E-FC01 Page 2 of 58 1 TEST RESULT CERTIFICATION Applicant’s name : Vitalsilicon Technologies Co., Ltd. Address : Room 701, Block B, Building 7, No.36 Changsheng South Road, Jiaxing City, Zhejiang Province Manufacture's name : Vitalsilicon Technologies Co., Ltd. Address : Room 701, Block B, Building 7, No.36 Changsheng South Road, Jiaxing City, Zhejiang Province Product name : Smart Tag Model name : VS-ST04-01 Additional Model : VS-ST04-XX, VS-ST05-XX, VS-SC04-XX, VS-SC05-XX ("XX" refers to numbers ranging from 01 to 99) Standards : FCC CFR47 Part 15 Section 15.247 Test procedure : ANSI C63.10-2020 Test Date : Sep. 22, 2025 to Oct. 12, 2025 Date of Issue : Oct. 12, 2025 Test Result : Pass This device described above has been tested by PTC, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of PTC, this document may be altered or revised by PTC, personal only, and shall be noted in the revision of the document. Test Engineer: Jack zhou / Engineer Technical Manager: Simon Pu / Manager Report No.: PTC25082012703E-FC01 Page 3 of 58 Contents Page 1 TEST RESULT CERTIFICATION .............................................................................................................................. 2 2 TEST SUMMARY ......................................................................................................................................................... 5 2.1 TEST SITE ........................................................................................................................................................... 6 3 GENERAL INFORMATION ..................................................................................................................................... 7 3.1 GENERAL DESCRIPTION OF E.U.T. .................................................................................................................... 7 3.2 CHANNEL LIST .................................................................................................................................................... 8 4 EQUIPMENT DURING TEST .................................................................................................................................. 9 4.1 EQUIPMENTS LIST ............................................................................................................................................ 9 4.2 MEASUREMENT UNCERTAINTY ......................................................................................................................... 11 4.3 DESCRIPTION OF SUPPORT UNITS ................................................................................................................... 12 5 CONDUCTED EMISSION ......................................................................................................................................... 13 5.1 E.U.T. OPERATION ........................................................................................................................................... 13 5.2 EUT SETUP ...................................................................................................................................................... 13 5.3 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................................. 14 5.4 MEASUREMENT PROCEDURE ........................................................................................................................... 14 5.5 CONDUCTED EMISSION LIMIT ........................................................................................................................... 14 5.6 MEASUREMENT DESCRIPTION .......................................................................................................................... 14 5.7 CONDUCTED EMISSION TEST RESULT ............................................................................................................. 14 6 RADIATED SPURIOUS EMISSIONS ..................................................................................................................... 15 6.1 EUT OPERATION .............................................................................................................................................. 15 6.2 TEST SETUP ..................................................................................................................................................... 16 6.3 SPECTRUM ANALYZER SETUP .......................................................................................................................... 17 6.4 TEST PROCEDURE ............................................................................................................................................ 18 6.5 SUMMARY OF TEST RESULTS .......................................................................................................................... 20 7 CONDUCT BAND EDGE AND SPURIOUS EMISSIONS MEASUREMENT ................................................... 28 7.1 TEST PROCEDURE ............................................................................................................................................ 28 7.2 TEST SETUP .....................................................................................................…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name UL10064-L=31 Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.73 -0.84 -0.68 -6.15 -3.70 -2.32 MAX. Gain -0.68 dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture Dongguan Mingxiu Electronics Technology Co., Ltd. Room 801, Building 6, No. 239, Zhongtang Section, Beiwang Road, Zhongtang Town, Dongguan City, Guangdong Province Antenna Photo & Length (mm) Antenna Type: integrated antenna Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536

FCCID:2BSXK-VS-ST04-01 RadiatedSpuriousEmissions From30MHz-1000MHz TestfrequencyfromAbove1GHz