2AHFT354Smart Bracelet

ShenzhenDOIntelligentTechnologyCo.,Ltd.Date:2020-12-17 TO:FederalCommunicationCommission EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MID21046 Regarding:FCCID:2AHFT354 Towhomitmayconcern: We,theundersigned,herebyauthorizeSGS-CSTCStandardsTechnicalServicesCo.,Ltd.(SGS) ShenzhenBranchandKenyXuinSGS-CSTCStandardsTechnicalServicesCo.,Ltd.(SGS)Shenzhen Branchtoactonourbehalfinallmannersrelatingtoapplicationforequipmentauthorizationwithrespect totheFCCIDabove,includingsigningofalldocumentsrelatingtothesematters.Anyandallactscarried outbytheagentonourbehalfshallhavethesameeffectasactsofourown. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits,thatincludes FCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21U.S.C.853(a). Whereouragentsignstheapplicationforcertificationonourbehalf,Iacknowledgethatallresponsibility forcomplyingwiththetermsandconditionsforCertification,asspecifiedbySGSNorthAmerica,Inc.,still resideswithShenzhenDOIntelligentTechnologyCo.,Ltd.. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant. PrintName:WuDajunTitle:Generalmanager Signature: OnbehalfofCompany:ShenzhenDOIntelligentTechnologyCo., Ltd. Telephone:4006-123-55 E-mail:[email protected]

Date:2020-12-17 To: FederalCommunicationsCommission OfficeofEngineeringandTechnologyLaboratoryDivision 7435OaklandMillsRd. ColumbiaMD21046 From:ShenzhenDOIntelligentTechnologyCo.,Ltd. Regarding:ConfidentialityRequestregardingapplicationforFCCID:2AHFT354 LONGTERMCONFIDENTIALITY Pursuantto47CFRSection0.459and0.457ofthecommission’srules,theapplicantherebyrequestsconfidential treatmentofthedocumentslistedbelow,associatedwiththecertificationapplicationreferencedabove. Schematic(s) BlockDiagrams OperationalDescriptions Thedocumentsabovecontainproprietaryinformationnotreleasedtothepublic.Publicdisclosureofthisinformationmay proveharmfultothebusinessoftheapplicant. PrintName:WuDajunTitle:Generalmanager Signature: OnbehalfofCompany:ShenzhenDOIntelligentTechnologyCo.,Ltd. Telephone:4006-123-55 E-mail:[email protected]

ApplicantDeclaration ApplicantDeclaration Rev:0.0 SGSNorthAmericaInc. 620OldPeachtreeRoad SUITE100 Suwanee,Georgia30024 UnitedStates ApplicantLegalBusinessName ShenzhenDOIntelligentTechnologyCo.,Ltd. Address 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,LonghuaDistrict,Shenzhen China GranteeCode 2AHFT FCCID 2AHFT354 AuthorizedContactName WuDajun ContactEmail [email protected] ContactPhone 4006-123-55 I,theundersigned,certifythatIamanauthorizedsignatoryfortheApplicantandthereforedeclare; a)inaccordancewith47CFR2.911(d),allofthestatementshereinandtheexhibitsattachedheretoaretrueandcorrecttothebestofmy knowledgeandbelief. b)inacceptingaGrantofEquipmentAuthorizationissuedbyaTCB,undertheauthorityoftheFCC,asaresultoftherepresentationsmadein thisapplication,theApplicantisresponsiblefor: (1)labelingtheequipmentwiththeexactFCCIDasspecifiedinthisapplication, (2)compliancestatementlabelingpursuanttotheapplicablerules, (3)complianceoftheequipmentwiththeapplicabletechnicalrules, c)iftheApplicantisnottheactualmanufactureroftheequipment,appropriatearrangementshavebeenmadewiththemanufacturertoensure thatproductionunitsofthisequipmentwillcontinuetocomplywiththeFCC’stechnicalrequirements. d)inaccordancewith47CFR2.909andKDB394321,theApplicanthasread,understoodandagreestoacceptthattheyaretheresponsible partyandagreetoabidebytheirresponsibilitiesasspecifiedunder47CFR2.909andKDB394321. e)inaccordancewithISO17065,FCCKDB641163,FCCKDB610077,KDB394321andRSP-100,theApplicanthasread,understood,accepts andagreestoabidebythepostmarketsurveillancerequirements. (1)theApplicantunderstands,acceptsandagreesthatasamplemayberequestedforsurveillancetesting. (2)theApplicantshallmakeprovisionstoalwayshaveaproductionsampleavailableuponrequestbySGS,FCCand/orISED. (3)theApplicantshall,uponrequestbySGS,attheApplicant’sexpense,provideaproductionsampleoftherequestedproducttoSGS, FCCand/orISEDasinstructed.Thesampleshallincludeallsupportdevices,cables,software,accessoriesorotherhardwareor softwarerequiredforevaluation,review,certificationandauditsurveillanceofproductscertifiedbySGS. f)neithertheApplicantnoranypartytotheapplicationissubjecttoadenialofFederalbenefits,thatincludesFCCbenefits,pursuanttoSection 5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862becauseofaconvictionforpossessionordistributionofacontrolledsubstance.See 47CFR1.2002(b)forthedefinitionofa“party”forthesepurposes. g)theApplicanthasread,understood,acceptsandagreestoabidebytheSGSNorthAmerica,Inc.(TCB)termsandconditions. LinktoCFRs:https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 LinktoKDBs:https://apps.fcc.gov/oetcf/kdb/index.cfm LinktoRSP-100:https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html ApplicantSignature: Date:2020-12-17 PrintName: WuDajun Title: Generalmanager ApplicantDeclaration ApplicantDeclaration Rev:0.0 SGSNorthAmericaInc. 620OldPeachtreeRoad SUITE100 Suwanee,Georgia30024 UnitedStates *NOTE:ThisdeclarationcannotbesignedbyanAgent,itshallbesignedbyanauthorizedpersonlistedintheFCCdatabase

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 4 External Photos for SZEM2012012692CR FCC ID:2AHFT354 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 4 1 EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 4 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 4 of 4

FCC ID:2AHFT354 GT Band 3mm

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 7 Internal Photos for SZEM2012012692CR FCC ID:2AHFT354 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 7 1 EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 4 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 5 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 6 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 7 of 7

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269203 Page: 1 of 6 Keny Xu EMC Laboratory Manager 1 Cover page SAR Evaluation Report Application No.: SZEM2012012692CR Applicant: Shenzhen DO Intelligent Technology Co., Ltd. Address of Applicant: 11th Floor, 3# Building, Guole Tech Park, Lirong Road, Dalang, Longhua District, Shenzhen,China Manufacturer: Shenzhen DO Intelligent Technology Co., Ltd Address of Manufacturer: Floor 11, Building 3, Changyi Industrial Factory,No.1 Lirong Road, Xinshi Community, Dalang Sub-district, Longhua District, Shenzhen City, China Factory: Shenzhen DO Intelligent Technology Co., Ltd Address of Factory: Floor 11, Building 3, Changyi Industrial Factory,No.1 Lirong Road, Xinshi Community, Dalang Sub-district, Longhua District, Shenzhen City, China Equipment Under Test (EUT): EUT Name: Smart Bracelet Model No.: GT Band Trade Mark: IDO FCC ID: 2AHFT354 Standards: 47 CFR Part 1.1307 47 CFR Part 2.1093 KDB447498D01 General RF Exposure Guidance v06 Date of Receipt: 2020-12-10 Date of Test: 2020-12-11 to 2020-12-18 Date of Issue: 2020-12-23 Test Result : Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269203 Page: 2 of 6 2 Version Revision Record Version Chapter Date Modifier Remark 01 2020-12-23 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu /Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269203 Page: 3 of 6 3 Contents Page 1 COVER PAGE ........................................................................................................................................ 1 2 VERSION ................................................................................................................................................ 2 3 CONTENTS ............................................................................................................................................ 3 4 GENERAL INFORMATION ..................................................................................................................... 4 4.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 4 4.2 TEST LOCATION ................................................................................................................................ 5 4.3 TEST FACILITY .................................................................................................................................. 5 4.4 DEVIATION FROM STANDARDS ............................................................................................................ 5 4.5 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................... 5 4.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER .......................................................................... 5 5 SAR EVALUATION ................................................................................................................................. 6 5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ........................................................................................ 6 5.1.1 Standard Requirement ................................................................................................................ 6 5.1.2 Limits .......................................................................................................................................... 6 5.1.3 EUT RF Exposure ....................................................................................................................... 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269203 Page: 4 of 6 4 General Information 4.1 General Description of EUT Battery: Rechargeable battery: DC 3.8V 110mAh(Charge by USB port) Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.0 LE Modulation Type: GFSK Sample Type: Portable production Number of Channels: 40 Channel Spacing: 2MHz Antenna Gain: 0.33dBi Antenna Type: Monopole SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269203 Page: 5 of 6 4.2 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 No tests were sub-contracted. 4.3 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • A2LA (Certificate No. 3816.01) SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01. • VCCI The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz, Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have been registered in accordance with the Regulations for Voluntary Control Measures with Registration No.: G-20026, R-14188, C-12383 and T-11153 respectively. • FCC –Designation Number: CN1178 SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized as an accredited testing laboratory. Designation Number: CN1178. Test Firm Registration Number: 406779. • Innovation, Science and Economic Development Canada SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized by ISED as an accredited testing laboratory. CAB identifier: CN0006. IC#: 4620C. 4.4 Deviation from Standards None. 4.5 Abnormalities from Standard Conditions None. 4.6 Other Information Requested by the Customer None. SGS-CSTC Standards Technical Services Co., L…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269202 Page: 1 of 51 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZEM2012012692CR Applicant: Shenzhen DO Intelligent Technology Co., Ltd. Address of Applicant: 11th Floor, 3# Building, Guole Tech Park, Lirong Road, Dalang, Longhua District, Shenzhen,China Manufacturer: Shenzhen DO Intelligent Technology Co., Ltd Address of Manufacturer: Floor 11, Building 3, Changyi Industrial Factory,No.1 Lirong Road, Xinshi Community, Dalang Sub-district, Longhua District, Shenzhen City, China Factory: Shenzhen DO Intelligent Technology Co., Ltd Address of Factory: Floor 11, Building 3, Changyi Industrial Factory,No.1 Lirong Road, Xinshi Community, Dalang Sub-district, Longhua District, Shenzhen City, China Equipment Under Test (EUT): EUT Name: Smart Bracelet Model No.: GT Band Trade Mark: IDO FCC ID: 2AHFT354 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2020-12-10 Date of Test: 2020-12-11 to 2020-12-18 Date of Issue: 2020-12-23 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269202 Page: 2 of 51 Revision Record Version Chapter Date Modifier Remark 01 2020-12-23 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269202 Page: 3 of 51 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Peak Output Power 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.4,6.5,6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM201201269202 Page: 4 of 51 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 TEST SUMMARY ....................................................................................................................................... 3 3 CONTENTS ................................................................................................................................................ 4 4 GENERAL INFORMATION ........................................................................................................................ 6 4.1 DETAILS OF E.U.T. ............................................................................................................................... 6 4.2 DESCRIPTION OF SUPPORT UNITS ......................................................................................................... 7 4.3 MEASUREMENT UNCERTAINTY .............................................................................................................. 8 4.4 TEST LOCATION .................................................................................................................................... 9 4.5 TEST FACILITY ...................................................................................................................................... 9 4.6 DEVIATION FROM STANDARDS ............................................................................................................... 9 4.7 ABNORMALITIES FROM STANDARD CONDITIONS ..................................................................................... 9 5 EQUIPMENT LIST .................................................................................................................................... 10 6 RADIO SPECTRUM TECHNICAL REQUIREMENT ............................................................................... 12 6.1 ANTENNA REQUIREMENT .................................................................................................................... 12 6.1.1 Test Requirement: ....................................................................................................................... 12 7 RADIO SPECTRUM MATTER TEST RESULTS ..................................................................................... 13 7.1 CONDUCTED PEAK OUTPUT POWER .................................................................................................... 13 7.1.1 E.U.T. Operation .......................................................................................................................... 13 7.1.2 Test Mode Description ................................................................................................................. 13 7.1.3 Test Setup Diagram ..................................................................................................................... 14 7.1.4 Measurement Procedure and Data............................................................................................. 14 7.2 MINIMUM 6DB BANDWIDTH .............................................…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 2 Setup Photos for SZEM2012012692CR FCC ID:2AHFT354 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 2 1 Photographs Radiated Spurious Emissions Below 1GHz Above 1GHz