2A54U-DT8ULTRASports smart watch

Sportssmartwatch USERMANUAL DT8Ultra Thankyouforchoosingoursmartwatch.Youcanfully understandtheuseandoperationoftheequipmentbyreading thismanual.Thecompanyreservestherighttomodifythe contentsofthismanualwithoutanypriornotice. Packageboxcontains:apackingbox,amanual,awatchbody,anda chargingcable. I.Watchfunctiondescription Twobuttonsmodeldescription: 1)Whenthewatchisintheoff-screenstate,shortpresstherotarybuttontoturnonthescreen,and shortpresstherotarybuttonagaintoturnoffthescreen; 2)Whenthewatchisinthedialinterface,double-clicktherotarybuttontoenterthemenu interface,continuallydouble-clickittochangethemenustyle;rotatetherotarybuttontoswitch thedial;shortpressthebarbuttontoenterthemulti-sportmode,orlong-presstoquicklymake emergencycalls(needtoconnecttotheBluetoothofamobilephonetouse); 3)Inthemenuinterface,rotatetherotarybuttontoturnthepage;shortpressanybuttonstoget backtothedialinterface; 4)Inanyinterface,longpresstherotarybuttonfor15secondstoforceafactoryreset; 5)Wheninthesecond-levelinterfaceorthethird-levelinterface,shortpressanybuttonstoreturn tothedialinterface; 6)Longpresstherotarybuttontocontrolthewatchon/off. Singlebuttonmodeldescription: 1)Whenthewatchisontheoff-screenstate,shortpresstherotarybuttontoturnonthescreen, andshortpresstherotarybuttonagaintoturnoffthescreen; 2)Whenthewatchisinthedialinterface,double-clicktherotarybuttontomakeemergencycalls (needtoconnecttotheBluetoothofamobilephonetouse);rotatetherotarybuttontoswitchthe dial; 3)Inthemenuinterface,rotatetherotarybuttontoturnthepage; 4)Enterthemenustyleinterface,shortpresstoexit; 5)Inthemenustyleinterface,double-presstherotarybuttontoswitchthemenustyle; 6)Whenenteringthesecond-levelinterfaceorthethird-levelinterface,shortpressthebuttonto returntothedialinterface; 7)Longpresstherotarybuttontocontrolthewatchon/off. 1.1Shortcutfunction: 1)Swipetothelefttofindthe"+"icon,clicktheicontoaddpartofthemenuasashortcut function. 2)ScrolldowntofindBluetoothconnectionstatus,time,power,donotdisturbmode,brightness adjustmentandotherfunctions. 3)Swipetotherighttodisplay,time/date/week,thelatestmessage(entertoviewmultiple messages)/turnonoroffBluetoothforcallsanddisplaysomeoftherecentlyusedmenufunctions. 4)Scrolluptoenterthemenuinterface,andscrollupanddowntofindthecorresponding function. 5)Longpressthewatchfacetoswitchthewatchface,selectoneandtapittosetitsuccessfully. 1.2Pushmessage 1)WhenthewatchisboundtotheAPP,andthenotificationpermissionisturnedon,thenew messagesreceivedinthenotificationbarofthemobilephonewillbepushedtothewatch,anda totalof10messagescanbesaved.Themessagesreceivedover10messageswillbeoverwritten onebyone. 2)Scrolltothebottomandpressthedeleteicontoclearallmessagerecords. 1.3Drop-downmenu Scrolldownthewatchfacetoenterthedrop-downmenuinterface. 1)Bluetoothconnectionstatus;timedisplay,powerdisplay; 2)Icon,toshowtheversionofthewatchandtheBluetoothaddress; 3)Icon,toadjustthebrightnessofthescreen; 4)Icon,tocontrolthemusic; 5)Icon,tosetthephonenumberoftheemergencycall.Inthedialinterface,longpressthebar buttontoquicklymaketheemergencycall. 6)Swipeleftformoreshortcutfunctions:GPS,modeselection,powersavingmode,alarm, flashlight,SOS(inpowersavingmode,thebrightnessdisplaywillbeslightlydifferent) 1.4Phone/CallHistory 1)Enterthetelephonefunction,click"Open"toturnonthecallingBluetooth,youcanseeaname oftheaudio/callingBluetooth,findthethenameinthemobilephone'sBluetoothlistandbindit. Aftertheyaresuccessfullyconnected,youcanusethewatchtoanswerorhanguptheBluetooth calls. 2)CallrecordscansavetherecordsofBluetoothcalls. 3)Enterthekeyboard,inputphonenumbertomakeBluetoothcalls. 1.5Message AfteryousuccessfullybindthewatchtotheAPP,andthecorrespondingnotificationspermission isallowedinyourmobilephonesystem,notificationsreceivedinyourmobilephonecanbe pushedtothewatch. 1.5.1.Incomingcallnotification: TurnonthecallreminderintheAPP.Whenthephonereceivesacall,thewatchwillringor vibrate. 1.5.2.SMSnotification: TheSMSnotificationcanbeenabledintheAPP.WhenoneormoreSMSmessagesarereceived onthemobilephone,thewatchwillreceiveoneormoreSMSremindersatthesametime. 1.5.3.Otherapplications’notification: TurnonthecorrespondingapplicationnotificationswitchintheAPP,suchasWeChat,QQ, Outlook,Facebookandotherapplications.Whenthemobilephonereceivesone/multiple applicationnotifications,thewatchwillreceiveone/multiplecorrespondingmessageremindersat thesametime. 1.6Frequentlyusedcontacts BindthewatchtotheAPPfirst,thenopentheAPP,tap“Device”>“Frequentcontacts”>“Add contacts(upto20contactscanbeadded)>“Syntowatch”. 1.7Fitnessdata Thefitnessdataisturnedonbydefault.Enterthefitnessdatainterfaceandscrolldowntodisplay thecurrentnumberofsteps,distance,andcaloriesofthewatch.Thedatawillbeclearedat00:00 everyday. 1.8Smartmodeselection Whenthewatchisswitchedtowatchmode,thewatchwilldisconnecttheBluetoothconnection andthewatchcanbeusedindependently,makingitmorepower-efficient. Whenthewatchisswitchedbacktosmartmode,thewatchcanconnecttotheAPPonthe phonetoperformmoresmartoperations. 1.9Sportsmodes(strike,running,cycling,ropeskipping,badminton,basketball,footballetc.) 1.9.1Selectthecorrespondingexercisemode,clickthestartbuttononthescreentoenterthe correspondingexercisemode;clickthestartbuttontostartorpausethecalculationoftheexercise, clicktheendbuttontoendtheexerciseandsavethedata. 1.9.2Whentheexercisetimeislongerthan1minute,theexercisedatacanbesaved;whenthe exerciseislessthanoneminute,itwillprompt"Toolittledatatosave". 1.9.3Newlyaddedmoreexercisemodestochoosefrom,suchasgym,yoga,indoorrunningand freetraining. 1.9.4NewlyaddedtheGPSmovementtrack.WhenyoustartthesportfunctionintheAPP,the watchwillenterthesportmodesimultaneously.Aftertheexercise,thedataintheAPPlikeGPS movementtrackwillsynchronizetothewatchforyoutocheckconveniently. 1.10Heartrate Wearthewatchonyourwristcorrectly,entertheheartratefeature,andyoucanmeasuretheheart rateforonceeachtime(Pleasemakesureyouwearitfirmlywhenyoumeasure). 1.11ECG Wearthewatchonyourwristcorrectly,entertheECGfeature(needtoopentheinterfaceof "ECGDetection"intheAPP),yo…

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ShenzhenXinkeyingTechnologyCo.,Ltd AgentAuthorization Company:ShenzhenXinkeyingTechnologyCo.,Ltd Address:8/F,BlockC,Han'sInnovationBuilding,XiliRoad,NanshanDistrict,Shenzhen,China ModelNumber(s): DT8Ultra,C118,DT8Ultra+ ProductDescription: Sportssmartwatch WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:09.23.2022 Name:MengtingChen Title:Projectbusiness Company:ShenzhenXinkeyingTechnologyCo.,Ltd

ShenzhenXinkeyingTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2022-09-23 Subject;RequestforConfidentiality FCCID: 2A54U-DT8ULTRA ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:MengtingChen Title:Projectbusiness

version01 ShenzhenXinkeyingTechnologyCo.,Ltd Modeldifferencestatement Itisherebydeclaredthattheproduct ProductName:Sportssmartwatch Model:DT8Ultra,C118,DT8Ultra+ FCCID:2A54U-DT8ULTRA TradeMark:DTNO.1 Thedifferencebetweentheproductmodelisonlythecolorandappearanceis notthesame,thedifferentmodelnameisforthemarketdemand.Otherpower supplymode,internalstructure,circuitandkeycomponentsarethesame,does notaffectthesafetyandelectromagneticcompatibilityperformance. Sincerely, Signature:Date:09.23.2022 Name:MengtingChen Title:Projectbusiness Company:ShenzhenXinkeyingTechnologyCo.,Ltd

Sportssmartwatch--DT8Ultra External

FCCID:2A54U-DT8ULRA fontsize：3cm*2mm Labellocation

Sportssmartwatch--DT8Ultra Internal

TRFNo.FCCRFExposure_R1 Add：WestSideof1/F.,BuildingC,ZoneA,FuyuanNewFactory,JiujiuIndustrialPark,Minzhu,Shatou,Shajing, Bao'anDistrict,Shenzhen,Guangdong,China Tel：+(86)0755-29852678Fax:+(86)0755-29852397E-mail：[email protected]:www.gdksign.com Page 1 of3 RFExposureEvaluation FCCID:2A54U-DT8ULTRA ApplicableStandard AccordingtoFCCpart2.1093andpart1.1307(b)(3),systemsoperatingundertheprovisionsofthissectionshallbe operatedinamannerthatensurethatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission'sguideline KDB447498D04InterimGeneralRFExposureGuidancev01，clause2.1.3SAR-BasedExemption: Amorecomprehensiveexemption,consideringavariablepowerthresholdthatdependsonboththeseparationdistance andpower,isprovidedin1.1307(b)(3)(i)(B).Thisexemptionisapplicabletothefrequencyrangebetween300MHzand6 GHz,withtestseparationdistancesbetween0.5cmand40cm,andforallRFsourcesinfixed,mobile,andportable deviceexposureconditions Accordingly,aRFsourceisconsideredanRFexemptdeviceifitsavailablemaximumtimeaveraged(matched conducted)poweroritseffectiveradiatedpower(ERP),whicheverisgreater,arebelowaspecifiedthreshold. TESTRESULT PassedNotApplicable TRFNo.FCCRFExposure_R1 Add：WestSideof1/F.,BuildingC,ZoneA,FuyuanNewFactory,JiujiuIndustrialPark,Minzhu,Shatou,Shajing, Bao'anDistrict,Shenzhen,Guangdong,China Tel：+(86)0755-29852678Fax:+(86)0755-29852397E-mail：[email protected]:www.gdksign.com Page 2 of3 BT Test mode Channel Frequenc y (MHz) Max. Measure dPower (dBm) Tune up tolera nce (dBm) Max. Tune up Powe r (dBm) AntennaGain conducted poweror ERP Evaluatio n distance cm Exemptio nLimit (mW) (dBi)(dBd) dBmmw BR/EDR24024.9±15-2.09-4.24 5.0 3.160.56.75 BLE Test mode Channel Frequenc y (MHz) Max. Measure dPower (dBm) Tune up tolera nce (dBm) Max. Tune up Powe r (dBm) AntennaGain conducted poweror ERP Evaluatio n distance cm Exemptio nLimit (mW) (dBi)(dBd) dBmmw BLE_1M/ 2M 24404.71±15-2.09-4.24 5.0 3.160.56.75 Note: - The tune-up power was declared by the applicant - dBi=dBd+2.15 - The maximum antenna gain is -2.09dBi. -The EUT does not support the call function,so limit:2.7*2.5=6.75. - To maintain compliance with the RF exposure guidelines, place the equipment less than 0.5cm from nearby persons -The BT and BLE can be transmit simultaneously:3.16/6.75+3.16/6.75=0.936<1 Result:Compliant --THEEND--

Page 1 of 85ReportNo.: KS2210S4491E02 TRF EMC_R1 Add:WestSide of 1/F., BuildingC, ZoneA, FuyuanNew Factory,JiujiuIndustrialPark,Minzhu,Shatou, Shajing,Bao'anDistrict,Shenzhen,Guangdong,China Tel: +(86)0755-29852678Fax: +(86)0755-29852397E-mail:[email protected]:www.gdksign.com TEST REPORT ReportNo. ............................................. :KS2210S4491E02 FCCID...................................................:2A54U-DT8ULTRA Applicant................................................:ShenzhenXinkeyingTechnologyCo. ,Ltd Address ................................................. : 8/F ,BlockC,Han'sInnovationBuilding,Xili Road,Nanshan District,Shenzhen,China Manufacturer........................................:ShenzhenXinkeyingTechnologyCo. ,Ltd Address.................................................: 8/F ,BlockC,Han'sInnovationBuilding,Xili Road,Nanshan District,Shenzhen,China ProductName ...................................... :Sportssmartwatch Trademark ............................................. : DTNO.1 Model/Typereference ......................... :DT8 Ultra,C118,DT8 Ultra+ Standard................................................:47 CFRPart 15.247 Dateof Receipt....................................:October18 , 2022 Dateof Test Date.................................:October18 , 2022to October27 , 2022 Dateof issue ......................................... :October29, 2022 Test result ............................................ :Pass Preparedby: ( Printedname+ Signature)Pai Zheng Approvedby: ( Printedname+ Signature) Sky Dong TestingLaboratoryName................:KSIGN(Guangdong)TestingCo., Ltd. Address.................................................: WestSide of 1/F., BuildingC, ZoneA, FuyuanNew Factory,JiujiuIndustrial Park,Minzhu,Shatou,Shajing,Bao'anDistrict,Shenzhen,Guangdong, China This test reportmay be duplicatedcompletelyfor legaluse with the approvalof the applicant.It shouldnot be reproducedexceptin full, withoutthe writtenapprovalof our laboratory.The clientshouldnot use it to claim productendorsementby KSIGN.The test resultsin the reportonly applyto the testedsample.The test report shall be invalidwithoutall the signaturesof testingengineers,reviewerand approver.Any objectionsmustbe raisedto TSTLMSwithin15 dayssincethe datewhenthe reportis received.It will not be takeninto considerationbeyondthis limit. The test reportmerelycorrespondsto the test sample.The reportis invalidif it is not stampedwith the "TestingSpecialStamp"and the "RidingSeamStamp". Page 2 of 85ReportNo.: KS2210S4491E02 TRF EMC_R1 Add:WestSide of 1/F., BuildingC, ZoneA, FuyuanNew Factory,JiujiuIndustrialPark,Minzhu,Shatou, Shajing,Bao'anDistrict,Shenzhen,Guangdong,China Tel: +(86)0755-29852678Fax: +(86)0755-29852397E-mail:[email protected]:www.gdksign.com TABLEOF CONTENTSPage 1. TEST SUMMARY.............................................................................................................................................4 1.1. Test Standards.......................................................................................................................................4 1.2. ReportVersion.......................................................................................................................................4 1.3. Test Description......................................................................................................................................5 1.4. Test Facility.............................................................................................................................................6 1.5. MeasurementUncertainty......................................................................................................................7 2. GENERALINFORMATION..............................................................................................................................8 2.1. GeneralDescriptionOf EUT ..................................................................................................................8 2.2. AccessoryEquipmentInformation.........................................................................................................8 2.3. Descriptionof Test Modes......................................................................................................................8 2.4. MeasurementInstrumentsList ...............................................................................................................9 3. EVALUATIONRESULTS(EVALUATION).....................................................................................................14 3.1. Antennarequirement............................................................................................................................14 3.1.1.E.U.T.Operation:........................................................................................................................14 3.1.2.Test Data:...................................................................................................................................14 4. RADIOSPECTRUMMATTERTEST RESULTS(RF) ...................................................................................15 4.1. ConductedEmissionat AC powerline .................................................................................................15 4.1.1.E.U.T.Operation:........................................................................................................................15 4.1.2.Test SetupDiagram:...................................................................................................................15 4.1.3.Test Data:...................................................................................................................................16 4.2. OccupiedBandwidth............................................................................................................................18 4.2.1.E.U.T.Operation:........................................................................…

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Report No：XH-OTA-R-C-20221017 OTA Test Report Customer information ： 深圳星航物连科学技术有限公司 Test items ： OTA Test Report Test date ： 2022-10-17 Vincent Tester ： Review： Keith.wang Page 1 of 13 Catalogue First、 Test system................................................. 3 1.1 Test System Description........................................... 3 1.2 Testing environment............................................... 3 1.3 Test system...................................................... 4 1.4 Test description................................................. 4 Second、 Test data..................................................... 6 2.1 Test data......................................................... 6 Efficiency： ......................................................... 6 Gain： ............................................................... 7 2.2 Phi 0 2D Diagram.............................................. 8 2.3 Phi 90 2D Diagram.............................................. 9 2.4 Theta 90 2D Diagram.......................................... 10 2.5 3D Etotal ....................................................... 11 Third、Length of physical image of antenna..............................13 Report No：XH-OTA-R-C-20221017 Page 2 of 13 First、Test system 1.1 Test system description T e s t s y s t e m NameMulti probe spherical near-field antenna measurement system T e s t i n g e n v i r o n m e n t E5071C T e s t e d o b j e c t Smart sports watch 1.2 Testing environment Page 3 of 13 Testing environment MPS2440 Multi probe spherical near-field antenna measurement system Ambient temperature 23°C Ambient humidity 52% Ambient air pressure 101KPa Report No：XH-OTA-R-C-20221017 1.3 Test system Schematic diagram of test system connection 1.4 Test description Prospective view of tested object placement Page 4 of 13 Report No：XH-OTA-R-C-20221017 Close up view of tested object placement Report No：XH-OTA-R-C-20221017 Page 5 of 13 Second、Test data 2.1 Test data Efficiency： Frequency/Mhz Efficiency / % 240023.28 240523.93 241024.21 241524.6 242025.29 242524.77 243024.77 243524.38 244023.82 244523.55 245022.7 245522.34 246022.03 246521.78 247021.83 247521.68 248021.93 248521.43 249021.43 249521.48 250020.99 Report No：XH-OTA-R-C-20221017 Page 6 of 13 增益：Gain Frequency/MHzMaxGain/dBi 2400-2.38 2405-2.44 2410-2.39 2415-2.27 2420-2.25 2425-2.2 2430-2.09 2435-2.21 2440-2.16 2445-2.18 2450-2.36 2455-2.41 2460-2.52 2465-2.67 2470-2.63 2475-2.72 2480-2.75 2485-2.8 2490-2.92 2495-3 2500-3.22 Report No：XH-OTA-R-C-20221017 Page 7 of 13 2.2 Phi 0 2D Diagram Report No：XH-OTA-R-C-20221017 Page 8 of 13 2.3 Phi 90 2D Diagram Report No：XH-OTA-R-C-20221017 Page 9 of 13 2.4 Theta 90 2D Diagram Report No：XH-OTA-R-C-20221017 Page 10 of 13 2.5 3D Etotal 2400MHz: 2440MHz: Report No：XH-OTA-R-C-20221017 Page 11 of 13 2480MHz: Report No：XH-OTA-R-C-20221017 Page 12 of 13 Third、Length of physical image of antenna Report No：XH-OTA-R-C-20221017 Page 13 of 13

FCCID:2A54U-DT8ULTRA ConductedEmissionatACpowerline Emissionsinrestrictedfrequencybands(below1GHz) Emissionsinrestrictedfrequencybands(above1GHz)