2BA5C-W190Intelligent Sleep Tracker Ring

Intended Use This product is used for detecting and managing sleep health data. By continuously monitoring the user's sleep process and analyzing the data, it helps users manage their health status and choose a healthy lifestyle. This product is intended for general health applications and encourages healthy activities. This product is not a medical device, and the health data, results, and suggestions provided are for reference only and should not be used as a basis for diagnosis and treatment. Do not operate or use this device without reading and fully understanding these instructions. Product Description The iSleepRing is used to User Manual for Intelligent continuously monitor the user's physiological indicators such as blood oxygen saturation, heart rate, respiratory rate, and body movements during sleep. The data monitored during sleep is synchronized to the app, where users can further view various indicators reflecting sleep health status, such as hypoxic burden and oxygen desaturation index. Comfortable wearing reduces the impact of continuous monitoring on nighttime sleep. Comprehensive data analysis and key event annotations help users understand the changes in sleep health data and the impact of events, encouraging the choice of a healthy lifestyle. 1. Warnings and Precautions ⚫ Ensure that the device is in normal working condition and operating environment when using it. ⚫ Do not use this device during MRI or CT scans. Stay away from devices that generate strong electric or magnetic fields, as they may interfere with the device's normal operation or affect the surrounding environment. ⚫ This device does not have an alarm function. It is not intended for arrhythmia analysis. ⚫ If you experience symptoms that may indicate an acute illness, consult your doctor immediately. Do not use this device for self-diagnosis or self- treatment. ⚫ The magnetic strap of this device produces a certain magnetic field. If the user is using medical devices that may be affected by magnetic force (such as pacemakers or cardiac stents), consult a doctor to confirm whether it can be used, ensuring that it does not interfere with or harm these magnetic devices when used. ⚫ Use only the cables and accessories specified in this manual. ⚫ The device contains a lithium battery. Do not dismantle, impact, squeeze, or expose it to fire. Do not use the device in flammable gas. Do not use the device in high-temperature environments or if the battery gets wet. ⚫ Do not immerse the device in water or other liquids. Do not clean the device with acetone or other volatile solvents. Do not clean the device in high- temperature, high-pressure, or gas sterilization environments. ⚫ Do not use the device in an oxygen- enriched environment or in environments with flammable or explosive substances. ⚫ Keep the device out of reach of children or infants to avoid accidental ingestion. ⚫ This product is suitable for people weighing more than 30 kg. ⚫ Do not tighten the strap too tightly on the finger to avoid finger ischemia or injury. Check the wearing position, and if there are adverse skin changes or discomfort, remove the device from the finger promptly. ⚫ Do not exert excessive force on the sensor component by squeezing or pulling. Intelligent Sleep Tracker Ring W190 Do not pull or twist the strap. ⚫ When the blood flow perfusion at the device's wearing position is too low or during physical activity, the device may not measure or may have larger errors. ⚫ If the device's measurement signal is incomplete at the wearing position, parameters such as blood oxygen saturation and pulse rate will display "--". ⚫ Avoid using sharp objects to operate the device. ⚫ Do not operate the device if it is damp due to condensation or spillage. Avoid using the device immediately after moving it from a cold environment to a warm and humid location. ⚫ Dispose of the device and its accessories properly according to local regulations when they reach the end of their service life. 2. Using the Intelligent Sleep Tracker Ring 2.1 Product structure and composition Name Description 1 Display screen Display measurement results and device status. 2 Touch button Used for power on and waking up the display screen. 3 Transmitter module Emits specified measurement signal during measurement. 4 Receiver sensor Receives signals from the transmitter module. 5 Charging terminal Used to charge the device by connecting to a dedicated charging cable. 6 Charging cable Device-specific charging cable, one end magnetically attaches to the device, and the other end connects to a standard USB power source. 7 Adapter finger pad A variety of finger pads of different thicknesses are provided in the product accessories, which are installed under the main unit to adapt to different finger circumferences and improve wearing comfort. 2.2 Packing checklist ⚫ iSleepRing host ⚫ User manual ⚫ Charging cable ⚫ Adapter finger pad 2.3 Unboxing Preparation Before unboxing, please carefully inspect the packaging box. If any damage is found, please contact the shipping company or our company immediately. If the packaging is intact, unpack the package using the correct method. Carefully remove the equipment and other components from the packaging box and check each item according to the packing list. Check for any mechanical damage to the equipment and ensure all items are present. If you have any questions, please contact our company immediately. ※ Note: ⚫ Please keep the packaging box and packaging materials for future transportation or storage. ⚫ When handling the packaging materials, it is important to comply with local regulations or the waste disposal system and keep the packaging materials out of reach of children. ⚫ The equipment may be susceptible to microbial contamination during storage, transportation, and use. If any damage is detected, please do not use it. 2.4 Initial Use of the Device Download the App： App Name: Fitfaith Sleep ※ Note: If you have previously installe…

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-ShenzhenFitfaithTechnologyCo.,Ltd.- TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotifytheFCCwithin30daysvia thegrantingTCB. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 5/23/23 U.S.AgentDesignation [ShenzhenFitfaithTechnologyCo.,Ltd.]acknowledgestheirconsentforthefollowingcontactlocatedin theUnitedStatestoactastheiragentforserviceofprocessfortheequipmentforwhichauthorization issought(FCCID:2BA5C-W190): NameandcompanyofU.S.agent:WeFaSelectionTradeTechnologyCo.,LTD PhysicalU.S.addressofagent:30N.GOULDST.STENSHERIDANWY,SHERIDAN,WY82801,United States FRNofU.S.agent:0033767856 EmailaddressofU.S.agent:[email protected] WeFaSelectionTradeTechnologyCo.,LTDacknowledgestheirobligationtoacceptserviceofprocesson behalfofShenzhenFitfaithTechnologyCo.,Ltd. ShenzhenFitfaithTechnologyCo.,LtdwiththeFRN0033755331acceptsitsobligationtomaintainan agentforserviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,or theconclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingthe equipment,whicheverislater. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirements listedunder§2.911(d)(7). Sincerely, Signature [CotenSong] [Manager] [ShenzhenFitfaithTechnologyCo.,Ltd Signature [JosonYe] [CEO] [WeFaSelectionTradeTechnologyCo.,LTD] 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 4

FCC ID:2BA5C-W190 1. E x t e r n a l P h o t o s o f t h e E U T FCC ID:2BA5C-W190

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FCC ID:2BA5C-W190 1. I n t e r n a l P h o t o s o f t h e E U T FCC ID:2BA5C-W190

Page 1 of 2 RFExposureevaluation FCCID:2BA5C-W190 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,handsets,laptops&tabletsetc.23“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)] · [√f(GHz)] ≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison • 3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.3.Manufacturingtolerance GFSK(Peak) ChannelChannel00Channel19Channel39 Target(dBm)-1.0-1.0-1.0 Tolerance±(dB)1.01.01.0 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BT2.48050.010.315<3.0Yes Page 2 of 2 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06. .....................EndofReport.........................

1/11 ܍ ᇡ ਜ SPECIFICATION FOR APPROVAL ࠼ЊӜᆀ CUSTOMER Ǻ  ࠼Њ਑ဦ CUSTOMER’S P/N Ǻ ਑ဦ PART NUMBER Ǻ WAN8010F245H05 ೕ਱ DESCRIPTION Ǻ Chip Antenna 8010 M-Ant 2.4~2.5G Type H05 ҁހ VERSION Ǻ V1.1 Вය ISSUE DATE Ǻ 2021/03/03 !࠼Њ!!܍ᇡ!  π ํา ೽ Ƭ ܍ ᇡ  ዴ ᇡ   ᇙ բ  ƒ›‡›•‘‘™ ࿤၈ࣽިמҽԖज़Ϧљ! OneWave Electronic Co., Ltd. ͳͳʹѠчѱч׫୔ҥфຉ262ဦͳኴ! ͳ ǡ‘Ǥͳͷͳǡ‹ ‘‰–”‡‡–ǡ‡‹–‘—‹•–”‹…–ǡ ƒ‹’‡‹‹–›ͳͳʹǡƒ‹™ƒ ႝ၉: ȋͲʹȌʹ ͅͻ ͅǦʹʹʹͲ ǣΪ ͅ ͅ͸ʹʹ ͅͻ ͅǦʹʹʹͲ ໺੿: ȋͲʹȌʹ ͅͻ ͅǦͷͲͷͷ ǣΪ ͅ ͅ͸ʹʹ ͅͻ ͅǦͷͲͷͷ 2/11 ONEWAVE TECHNOLOGY CO., LTD. 8010 Chip antenna For Bluetooth / WLAN Applications Dimension (mm) L 8.01 ± 0.20 W 1.03 ± 0.20 T 1.25 ± 0.20 Wġ Lġ Tġ P/N: WAN8010F245H05 3/11 ONEWAVE TECHNOLOGY CO., LTD. Part Number Information WAN 8010 F 245 H 05 A B C D E F A Product Series Antenna B Dimension L x W 8.0X1.0mm (+-0.2mm) C Material High K material D Working Frequency 2.4 ~ 2.5GHz E Feeding mode Monopole & Single Feeding F Antenna type Type = 05 1. Electrical Specification Remark : Bandwidth & Peak Gain was measured under evaluation board of next page Specification Part Number WAN8010F245H05 Central Frequency 2450 MHz Bandwidth 100 (Min.) MHz Return Loss -10 (Max) dB Peak Gain 3.53 dBi Impedance 50 Ohm Operating Temperature -40焍+110 ɗ Maximum Power 4 W Resistance to Soldering Heats 10 ( @ 260ɗ) sec. Polarization Linear Azimuth Beamwidth Omni-directional Termination Cu / Sn (Leadless) 4/11 ONEWAVE TECHNOLOGY CO., LTD. 2. Recommended PCB Pattern Evaluation Board Dimension Unit : mm Suggested Matching Circuit 慵慵天屯妲 : ⋡惵⃫ẞ⺢嬘ἧ䓐䱦㸾⹎檀䘬暣デ±0.1~0.3nHˣ暣⭡±0.1pF 5/11 ONEWAVE TECHNOLOGY CO., LTD. ‹ Layout Dimensions in Clearance area( Size=10.0*5.0mm ) 50 ohm transmission Line Matching Circuit ‹ Layout Dimensions in Clearance area( Size=10.0*3.0mm ) 50 ohm transmission Line Matching Circuit FootPrint (Unit : mm) 6/11 ONEWAVE TECHNOLOGY CO., LTD. 3. Measurement Results Return Loss 7/11 ONEWAVE TECHNOLOGY CO., LTD. Radiation Pattern Efficiency Peak Gain Directivity 2400MHz 69.25 % 3.41 dBi 5.42 dBi 2450MHz 75.82 % 3.53 dBi 5.38 dBi 2500MHz 68.55 % 3.26 dBi 5.17 dBi Chamber Coordinate System ŚŚġ śśġġ řřġ 8/11 ONEWAVE TECHNOLOGY CO., LTD. 4.Reliability and Test Condictions ITEM REQUIREMENTS TEST CONDITION Solderability 1. Wetting shall exceed 90% coverage 2. No visible mechanical damage Pre-heating temperature:150ɗ/60sec. Solder temperature:230 Ʋ5ɗ 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% 10Ʋ0.5 sec. 60sec TEMP (ɗ) 150ɗ 260°C Pre-heating temperature:150ɗ/60sec. Solder temperature:260 Ʋ5ɗ Duration:10±0.5sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Component Adhesion (Push test) 1. No visible mechanical damage The device should be reflow soldered(230 ²5ɗ for 10sec.) to a tinned copper substrate A dynometer force gauge should be applied the side of the component. The device must wit h-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(ɗ) Time(min) 1 +110±5ɗ 30±3 2 Room Temperature Within 3sec 3 -40±2ɗ 30±3 4 Room Temperature Within 3sec +110ɗ=>30±3min -40ɗ=>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±5ɗ Duration: 1000Ʋ12hrs 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±5ɗ Duration: 1000Ʋ12hrs 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±2ɗ Humidity: 90% to 95% RH Duration: 1000Ʋ12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. 4²1 sec. 60sec TEMP (ɗ) 150ɗ 230濎 9/11 ONEWAVE TECHNOLOGY CO., LTD. 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. ɄPreheat circuit and products to 150ɗ ɄNever contact the ceramic with the iron tip ɄUse a 20 watt soldering iron with tip diameter of 1.0mm Ʉ280ɗ tip temperature (max) Ʉ1.0mm tip diameter (max) ɄLimit 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 10/11 ONEWAVE TECHNOLOGY CO., LTD. 6.Packaging Information ‹ Tape Specification: W Ao Bo Ko P F E D D1 Po P2 t 16.0 ±0.30 1.30 ±0.10 8.30 ±0.10 1.40 ±0.10 4.00 ±0.10 7.50 ±0.10 1.75 ±0.10 1.50 ±0.10 0.00 ±0.10 4.00 ±0.10 2.00 ±0.10 0.30 ±0.05 ‹ Reel Specification: (7’’, Φ180 mm) Tape Width(mm) A(mm) B(mm) C(mm) D(mm) Chip/Reel(pcs) 16 16±1.0 60±2 13.5±0.5 178±2 3000 11/11 ONEWAVE TECHNOLOGY CO., LTD. …

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ReportNo.:GRCTR230502002-01Page 26 of 33 GFSK1Mbps(CH39)GFSK2Mbps(CH00) referencereference 30MHz-1G30MHz-1G 1G-25G1G-25G ReportNo.:GRCTR230502002-01Page 27 of 33 GFSK2Mbps(CH19)GFSK2Mbps(CH39) referencereference 30MHz-1G30MHz-1G 1G-25G1G-25G ReportNo.:GRCTR230502002-01Page 28 of 33 Band-edgeMeasurementsforRFConductedEmissions: BLEGFSK1Mpbs LeftbandedgeRightbandedge BLEGFSK2Mpbs LeftbandedgeRightbandedge ReportNo.:GRCTR230502002-01Page 29 of 33 4.7AntennaRequirement StandardApplicable Forintentionaldevice,accordingtoFCC47CFRSection15.203: Anintentionalradiatorshallbedesignedtoensurethatnoantennaotherthanthatfurnishedbythe responsiblepartyshallbeusedwiththedevice.Theuseofapermanentlyattachedantennaorofanantenna thatusesauniquecouplingtotheintentionalradiator,themanufacturermaydesigntheunitsothatabroken antennacanbereplacedbytheuser,buttheuseofastandardantennajackorelectricalconnectoris prohibited. FCCCFRTitle47Part15SubpartCSection15.247(c)(1)(I): (i)Systemsoperatinginthe2400-2483.5MHzbandthatisusedexclusivelyforfixed.Point-to-pointoperations mayemploytransmittingantennaswithdirectionalgaingreaterthan6dBiprovidedthemaximumconducted outputpoweroftheintentionalradiatorisreducedby1dBforevery3dBthatthedirectionalgainofthe antennaexceeds6dBi. AntennaConnectedConstruction Themaximumgainofantennawas3.53dBi. Remark:Theantennagainisprovidedbythecustomer,ifthedataprovidedbythecustomerisnotaccurate, ShenzhenGUORENCertificationTechnologyServiceCo.,Ltd.doesnotassumeanyresponsibility. ReportNo.:GRCTR230502002-01Page 30 of 33 5TestSetupPhotosoftheEUT ReportNo.:GRCTR230502002-01Page 31 of 33 6PhotosoftheEUT ReportNo.:GRCTR230502002-01Page 32 of 33 BTAntenna ReportNo.:GRCTR230502002-01Page 33 of 33 **********************EndofReport**********************

FCC ID:2BA5C-W190 1. T e s t S e t-up P h o t o s o f t h e E U T FCC ID:2BA5C-W190