2AHFT507Smart Watch

Shenzhen DO Intelligent Technology Co., Ltd.

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Application Details

Equipment Class: DSS - Part 15 Spread Spectrum Transmitter
Date of Grant: Apr 16, 2023
Application Purpose: Original Equipment
Date of Application: Apr 16, 2023
Equipment Note: Smart Watch
Frequency Range: 2402.00000000 - 2480.00000000
Company: Shenzhen DO Intelligent Technology Co., Ltd.
Country: China

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

Date:04/17/2018VCB_F-01:OperatingProceduresForm–FCCAuthorizationv02Page1of1 ShenzhenDOIntelligentTechnologyCo.,Ltd. Applicant’sSignature: Applicant’sname:WuDaju Attestation Statement Letter I Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-4-10 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC Application for FCC ID: 2AHFT507 Shenzhen DO Intelligent Technology Co., Ltd. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited for receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely n

Attestation Statements

Date:04/17/2018VCB_F-01:OperatingProceduresForm–FCCAuthorizationv02Page1of1 ShenzhenDOIntelligentTechnologyCo.,Ltd. Applicant’sSignature: Applicant’sname:WuDaju Attestation Statement Letter II Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-4-10 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC Application for FCC ID: 2AHFT507 Shenzhen DO Intelligent Technology Co., Ltd. certifies 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. Sincerely n

Attestation Statements

S h e n z h e n D O I n t e ll i g e n t T e c h n o l o g y C o . , L t d A dd ress : 1 1 t h F l oo r , 3 # B u i l d i n g , G u o l e T e c h P a r k , L i r o n g R o a d , D a l a n g , L o n g h u a D i s t r i c t , S h e nz h e n , C hi n a G ran t ee C o d e : 2 AHFT F RN : 00 2 5 2 89893 D a t e : 2 023 - 0 4 - 0 7 F e d e r a l C o mmun i c a t i o n s C o mm i ss i o n A u t h o r i z a t i o n a n d E v a l u a t i o n D i v i s i o n R e f : A tt e s t a t i o n S t a t e m e n t s P a r t 2 . 9 1 C o l u m b i a , M D 2 1 0 4 74 3 5 O a kl a n d M ill s R o a d 6 1 ( d ) ( 7 ) F ili n g S U B J EC T : F CC A pp li ca t i o n f o r F CC I D : 2 AHF T 50 7 D es i g n a t e d U . S . A g e n t I n f o rm a t i o n : A d d r e s s : 4 033 S T C l a i r A v e , C l e v e l a n d , O H 44 1 03 , U S N ame : C l e v e l a n d I n t e r n a t i o n a l T ra d e A g enc y A FR N : 0033 4 0 1 83 7 C o n t a c t P e r s o n : B ec k y D e n g T e l . : 2 1 6 - 600 - 06 06 E m a i l : G eo r g e wu 7 0 1 2 @ g m a i l . c o C l e v e l a n d I n t e r na t i o na l T r a d e A g e n c y a c c e p t s , a s o f t h e d a t e o f t h e f l i n g o f t h e a p p li c a t i o n t h e o b l i g a t i o n o f t h e d es i g n a t e d U . S . a g e n t f o r s e r v i ce o f p r oc e s s f o r t h e a b o v e r e f e r e n ce d F C C I D a pp l i ca t i o n , C l e v e l a n d I n t e r n a t i o n a l T r a d e A g e n c y . i s o ur d e s i g n a t e d U . S . a g e n t f o r s e r v i c e o S h e n z h e n DO I n t e ll i g e n t T e c h n o l o gy C o . , L t d c e r t i f i e s t h a t , a so f t h e d a t eo f t h e fi l i n g o f t h e f p r oc e ss f o r t h e a b ov e r e f e r e n ce d F CC I D : 2 AHFT 507 .Shenzhen DO Intelligent Technology Co., Ltd accepts to maintain an agent for no less than one year after the grantee has terminated al marketing and importation or the conclusion of any Com mission - related proceeding involvingthe equipment. . m S i n ce r e l y , S i g n e d o n b e h a l f o f S h e n z h e n D O I n t e lli g e n t S i g n e d on b e h a l f o f C l e v e l a n d I n t e rn a t i o n a l T r a d T e c h n o l o gy C o . , L t d N a m e : W u D a j u n N a m e : B ec k y D e n g T t l e : M a n a g e r T i t l e : G e n e r a m a n a g e r D a t e : 2 0 2 3 - 4 - 7 D a t e : 2 0 2 3 - 4 - 7

Cover Letter(s)

Date:04/17/2018VCB_F-01:OperatingProceduresForm–FCCConfidentialityv02Page1of1 ShenzhenDOIntelligentTechnologyCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Confidentiality Request regarding application for certification of FCC ID: 2AHFT507 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type 1. Block Diagram, 2. Schematics, 3. Operational Description Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsmaybeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateofthe Grantforthisapplication. PursuanttoDA04-1705June15,2004oftheCommission’spublicnotice,wealso requesttemporaryconfidentialtreatmentofinformationaccompanyingthisapplication asoutlinedbelowforaninitialperiodofxxxx(ie-“45”,“90”or“180”)days File Name 1. 2AHFT507 -Block diagram 2. 2AHFT507 -SCH 3. 2AHFT507 -Operational description : ExhibitTypeFileName N/AN/A Signature: Contactname:WuDajun Companyname: ShenzhenDOIntelligentTechnologyCo.,Ltd. Address:11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,LonghuaDistrict,Shenzhen, China

Cover Letter(s)

Date:04/17/2018VCB_F-01:OperatingProceduresForm–FCCAuthorizationv02Page1of1 TechnologyCo.,Ltdat1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad, DalangStreet,LonghuaDistrict,Shenzhen,Chinaonourbehalf,toapplytotheFederal CommunicationsCommissiononourequipment.Anyandallactscarriedoutby ShenzhenHuaxiaTestingTechnologyCo.,Ltd onourbehalfshallhavethesame effectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We, theapplicant,arenotsubjecttoadenialoffederalbenefitspursuanttoSection 5301oftheAnti-DrugActof1988,21USC853a,andnopartytotheapplicationis subjecttoadenialoffederalbenefitspursuanttothatsection. Sincerely, (MustbesignedbythepersonthatislistedontheFCCWebsite Shenzhen DO Intelligent Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-4-4 SUBJECT: FCC Application for (FCC ID:2AHFT507) To Whom It May Concern: We, the undersigned, hereby authorizeHedy Huangin Shenzhen Huaxia Testing ) Signature: Contactname:WuDajun Companyname:ShenzhenDOIntelligentTechnologyCo.,Ltd. Address:11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,LonghuaDistrict,Shenzhen,China

External Photos

ExternalPhotos

ID Label/Location Info

F C C I D : 2 A H F T 5 0 7 I C : 2 3 0 2 3 - 2 A H F T 5 0 7 IDW16 3mm

Internal Photos

InternalPhotos #2

RF Exposure Info

ShenzhenHuaxiaTestingTechnologyCo.,Ltd 1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad,DalangStreet,LonghuaDistrict, Shenzhen,China Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V05 ReportTemplateRevisionDate:2021-11-03 RFExposureEvaluationReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20230200163E-03 Applicant: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China EquipmentUnderTest(EUT): EUTName:SmartWatch ModelNo.:IDW16,IDW19 TestModelNo.:IDW16 BrandName:IDO FCCID:2AHFT507 Standards: 47CFRPart1.1307 47CFRPart2.1093 KDB447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2023-02-15 DateofTest: 2023-02-15to2023-02-23 DateofIssue:2023-04-10 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-03 Page:2of8 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20230200163E-03Rev.01 Initialreport 2023-04-10 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-03 Page:3of8 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBLE...................................................................................................................................4 3.4GENERALDESCRIPTIONOFBT......................................................................................................................................4 4SAREVALUATION...........................................................................................................................................................5 4.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................5 4.1.1StandardRequirement......................................................................................................................................5 4.1.2Limits....................................................................................................................................................................5 4.1.3EUTRFExposure..............................................................................................................................................7 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-03 Page:4of8 3GeneralInformation 3.1ClientInformation Applicant: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China Manufacturer: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofManufacturer: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China Factory: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofFactory: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China 3.2GeneralDescriptionofEUT ProductName: SmartWatch ModelNo.: IDW16,IDW19 TestModelNo.: IDW16 TradeMark: IDO SoftwareVersion: V1.00.03 HardwareVersion: V1.1 PowerSupply: Li-ionbattery:DC3.8V300mAh,ChargebyDC5Vforadapter 3.3GeneralDescriptionofBLE OperationFrequency:2402MHz~2480MHz ModulationType:GFSK TransferRate:1Mbps/2Mbps NumberofChannel:40 ProductType:MobilePortable AntennaType: FPCantenna AntennaGain: -1.47dBi 3.4GeneralDescriptionofBT OperationFrequency:2402MHz~2480MHz ModulationType:GFSK,π/4DQPSK,8DPSK TransferRate:1Mbps/2Mbps/3Mbps NumberofChannel:79 ProductType:MobilePortable AntennaType: FPCantenna AntennaGain: -1.47dBi ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-03 Page:5of8 4SAREvaluation 4.1RFExposureComplianceRequirement 4.1.1StandardRequirement 447498D04InterimGeneralRFExposureGuidancev01 3.2.SARTestReductionGuidance SARtestreductionprocedures[Glossary]allowusingaparticularsetoftestdataasrepresentative ofother,similar,testconditions.Thismaybeappliedfordatawithindifferenttestpositions(e.g.body, head,extremity),wirelessmodes(e.g.Wi-Fi,cellular),andfrequencybands.Thistestreductionprocess providesfortheuseoftestdataforonespecificchannel,whilereferencingtothosedatafordemonstrating complianceinotherrequiredchannelsforeachtestpositionofanexposurecondition,withintheoperating modeofafrequencyband.Thisislimitedspecificallytowhenthereported1-gor10-gSARforthemid- bandorhighestoutputpowerchannelmeetsanyofthefollowingconditions. 4.1.2Limits SAR-basedthresholdsarederivedbasedonfrequency,power,andseparationdistanceoftheRF source.Theformuladefinesthethresholdsingeneralforeitheravailablemaximumtimeaveragedpoweror maximumtime-averagedERP,whicheverisgreater. IftheERPofadeviceisnoteasilydetermined,suchasforaportabledevicewithasmallform factor,theapplicantm…

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Test Report

Page 1 Admit it The product description: The manufacturer： Welletronics Communication Technology Limited Project type： IDW16 The name of the material： Bluetooth RF antenna Specification/Color： white Material code： 3.01.IDW16F1000 Sign the sample date： 2023.03.04 The version number： V1.0 note： The attachment：  Description of electrical and mechanical properties (Specification)  Manufacturing flow chart  QCEngineering drawing  The sample  CPK report  Full size measurement report  Reliability test report  The packing way  Raw material list report /RoHS report/HF/REACH Supplier sign and approve artificial： audit： approval： The above shall be filled in by the supplier and the following shall be filled in by Aidu department Confirm the content Verify the results Confirm person/da te Technical confirmation column Supplier quality ☐ RoHS material ☐ no RoHS material ☐Meet REACH requirements ☐ Meet halogen-free requirement s ☐Other Environmen tal Requiremen ts ID of Design Department ☐The customer request ID ☐Color confirmation ☐Surface process confirmatio n ☐Shell, hardware, key material Structural engineer ☐ Confirm the size of 2D drawing files ☐Specifications and technical requirements ☐Focus on size marking control ☐Electrical performance parameter ☐Adapter validation ☐function ☐Shell, hardware, key material ☐The effect Hardware engineer ☐ Confirm the size of 2D drawing files ☐Specifications and technical requirements ☐Focus on size marking control ☐Electrical performance parameter ☐Adapter validation ☐function ☐Shell, hardware, key material ☐The effect R&d quality ☐Test standard confirmation ☐appearance ☐Standardization of dimension marking (key dimensions) ☐ Reliability verification ☐Adapter validation ☐function ☐The effect Final confirmation Project Manager ☐Acknowledge the completeness of the documents ☐Standardization of dimension marking (key dimensions) ☐Specifications and technical requirements ☐appearance ☐Electrical performance parameter ☐function ☐The effect Admitted conditions： ☐ Official recognition ☐ Set limit to admit ☐ Refuse to admit Distribution department： ☐ IQC ☐ supplier ☐ The customer ☐ after-sales ☐ SQE/ Document control ☐ other ________ QF-QMP-QA01-01 Confidential Informatio Page 2 Catalog One 、The cover ··············································································· 1 Two、 Directory..................................................................................2 Three 、Change history ······································································· 3 Four、 Electrical characteristics...........................................................4-6 Five、T h e 2D drawings....................................................... . . . 7 Six、Full-scale measurement report.........................................................8 Seven、Cpk Report...........................................................................9 Eight 、The RoHS report .................................................................. 10 Nine、Salt spray test .....................................................................11 Ten、 High and Low Temperature Testing ............................................. 12 Eleven、Material quality proves ......................................................13 Twelve、Shipment packaging ............................................................14 Confidential Informatio Page 3 Three 、Change history Change of resume Serial number Date of change entry name Edition Change content Remarks 1 Mar 4, 2023 IDW16 BT antenna V1.0 nothing New issue Confidential Informatio Page 4 Four、 Electrical characteristics 1.Antenna Structure Figure antenna structure 2. Test Results BT-Return Loss/VSWR BT-Return Loss/VSWR Confidential Informatio Page 5 3. Test Repor No source by space test efficiency/pattern Match The antenna E1ement Va1ue E1 1.2PF E2 0Ω E3 E4 Free space Add the arm Confidential Informatio Page 6 3. The direction of figure Add the arm Free space Confidential Informatio Page 7 Five、The 2D drawings Confidential Informatio Page 8 Six、Full-scale measurement report Rev DIM. # DIMENSION DRAWING ZONE + TOL. - TOL. NOTE SAMPLE 1 SAMPLE 2 SAMPLE 3 SAMPLE 4 SAMPLE 5 UPPER LOWER 0%-25% 25%-50% 50%-75% 75%-100% 100%+ Re-Measure Accept Fix Tool Accept With Variance DIMEN SION + TOL. - TOL. 1 1.05 0.30 0.30 1.07 1.06 1.03 1.09 1.02 13% 10% X 2 1.80 0.30 0.30 1.77 1.83 1.88 1.77 1.76 27% 13% X 3 1.15 0.30 0.30 1.19 1.11 1.18 1.19 1.11 13% 13% X 4 0.15 0.05 0.05 0.15 0.15 0.15 0.15 0.15 0% 0% X 5 8.46 0.15 0.15 8.46 8.50 8.50 8.44 8.45 27% 13% X 6 1.85 0.15 0.15 1.84 1.87 1.83 1.88 1.84 20% 13% X 7 1.10 0.10 0.10 1.06 1.09 1.10 1.12 1.06 20% 40% X 8 9.59 0.15 0.15 9.61 9.57 9.58 9.57 9.60 13% 13% X 9 13.30 0.15 0.15 13.31 13.32 13.27 13.29 13.31 13% 20% X WTT Material Code Vendor Material name FPC Part NO 759-079-03A02 ACCEPTABLE VARIANCE Full-scale measurement report Tool Number Comments Part Name IDW16 BT antenna Date 04-Mar-23 R:B MEASURED DIMENSION % TOLERANCE USED DISPOSITION Cav. Number Unit INCHES MILLIMETERS Confidential Informatio Page 9 Seven、Cpk Report Vendor Inspected Inches/MM Material Name Material Code Date 59 8.4613.30 0.150.15 -0.15-0.15 8.6113.45 8.3113.15 8.4613.31 8.5013.32 8.5013.27 8.4413.29 8.4513.31 8.4413.33 8.4613.35 8.5013.28 8.4013.29 8.4213.31 8.4813.28 8.5113.33 8.4813.28 8.5013.35 8.4413.25 8.4613.26 8.4413.28 8.4013.25 8.4213.36 8.4613.28 8.4613.29 8.4213.25 8.4813.28 8.5113.26 8.4013.28 8.4213.35 8.5013.25 8.4013.26 8.4213.35 8.4613.36 8.5113.36 8.4013.25 8.4513.30 0.040.04 1.391.38 1.341.35 CMMCMM Written By：Jie Xiao CPK Report Part Number 759-079-03A02 WTT IDW16 BT antenna 肖洁 Description Tool Number mm FPC RevisionR:B 4-Mar-23 Dim. Designator Nominal + Tolerance(A11 - Tolerance Upper Limit Lower Limit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 23 24 25 16 17 18 19 20 Cpk TOOLING Cavity Approved By：Kun Yao MAX. MIN. AVERAGE STDEV CP 26 27 28 29 30 21 22 Confidential Informatio Page 10 Eight 、The RoHS report Welletronics Communi…

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Test Report

ShenzhenHuaxiaTestingTechnologyCo.,Ltd. 1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad,DalangStreet,LonghuaDistrict, Shenzhen,China Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V05 ReportTemplateRevisionDate:2021-11-03 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20230200163E-01 Applicant: ShenzhenDOIntelligentTechnologyCo.,Ltd AddressofApplicant: 11thFloor,3#Building,GuoleTechPark,LirongRoad,Dalang,Longhua District,Shenzhen,China EquipmentUnderTest(EUT): Product: SmartWatch ModelNo.: IDW16,IDW19 TestModelNo.:IDW16 BrandName: IDO FCCID: 2AHFT507 Standards:47CFRPart15,SubpartC DateofReceipt:2023-02-15 DateofTest: 2023-02-15to2023-02-23 DateofIssue:2023-04-10 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:2of109 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20230200163E-01Rev.01 Initialreport 2023-04-10 Thedataof#2isthetestdataofIDW19.ThedifferencesbetweenIDW16andIDW19aredifferentin appearance,batterysupplier,screensupplierandheartratepanelsupplier 3#dataisthedifferencetest.Thedifferencepointisthatthebatterysuppliersaredifferent ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:3of109 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement 47CFRPart15,SubpartCSection 15.203/15.247(c) ANSIC63.10(2013)PASS ACPowerLineConducted Emission 47CFRPart15,SubpartCSection 15.207 ANSIC63.10(2013)PASS ConductedPeakOutput Power 47CFRPart15,SubpartCSection 15.247(b)(1) ANSIC63.10(2013)PASS 20dBOccupiedBandwidth 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS CarrierFrequencies Separation 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS HoppingChannelNumber 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS DwellTime 47CFRPart15,SubpartCSection 15.247(a)(1) ANSIC63.10(2013)PASS PseudorandomFrequency HoppingSequence 47CFRPart15,SubpartCSection 15.247(b)(4) ANSIC63.10(2013)PASS Band-edgeforRF ConductedEmissions 47CFRPart15,SubpartCSection 15.247(d) ANSIC63.10(2013)PASS RFConductedSpurious Emissions 47CFRPart15,SubpartCSection 15.247(d) ANSIC63.10(2013)PASS RadiatedSpurious emissions 47CFRPart15,SubpartCSection 15.205/15.209 ANSIC63.10(2013)PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15,SubpartCSection 15.205/15.209 ANSIC63.10(2013)PASS ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:4of109 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 4.6STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................................9 4.7TESTLOCATION........................................................................................................................................................10 4.8TESTFACILITY..........................................................................................................................................................10 4.9ABNORMALITIESFROMSTANDARDCONDITIONS......................................................................................................10 4.10OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................10 4.11EQUIPMENTLIST.....................................................................................................................................................11 5TESTRESULTSANDMEASUREMENTDATA.....................................................................................................12 5.1ANTENNAREQUIREMENT..........................................................................................................................................12 5.2CONDUCTEDEMISSIONS............................................................................................................................................13 5.3CONDUCTEDPEAKOUTPUTPOWER.........................................................................................................................21 5.420DBOCCUPYBANDWIDTH....................................................................................................................................…

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Test Report

ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:61of109 DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:62of109 DH5_Ant1_2402_1000~26500 DH5_Ant1_2441_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:63of109 DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:64of109 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:65of109 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:66of109 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:67of109 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:68of109 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:69of109 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:70of109 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:71of109 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:72of109 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:73of109 3DH5_Ant1_2480_0~Reference 3DH5_Ant1_2480_30~1000 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:74of109 3DH5_Ant1_2480_1000~26500 Remark: Pretest9kHzto25GHz,findthehighestpointwhentesting,soonlytheworstdatawereshowninthetest report.PerFCCPart15.33(a)and15.31(o),Theamplitudeofspuriousemissionsfromintentionalradiators whichareattenuatedmorethan20dBbelowthepermissiblevalueneednotbereportedunlessspecifically requiredelsewhereinthispart. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:75of109 5.10 OtherrequirementsFrequencyHoppingSpreadSpectrumSystem TestRequirement:47CFRPart15CSection15.247(a)(1),(h)requirement: Thesystemshallhoptochannelfrequenciesthatareselectedatthesystemhopping ratefromaPseudorandomorderedlistofhoppingfrequencies.Eachfrequencymustbeusedequally ontheaveragebyeachtransmitter.Thesystemreceiversshallhaveinputbandwidthsthatmatchthe hoppingchannelbandwidthsoftheircorrespondingtransmittersandshallshiftfrequenciesin synchronizationwiththetransmittedsignals. Frequencyhoppingspreadspectrumsystemsarenotrequiredtoemployallavailablehopping channelsduringeachtransmission.However,thesystem,consistingofboththetransmitterandthe receiver,mustbedesignedtocomplywithalloftheregulationsinthissectionshouldthe transmitterbepresentedwithacontinuousdata(orinformation)stream.Inaddition,asystem employingshorttransmissionburstsmustcomplywiththedefinitionofafrequencyhoppingsystem andmustdistributeitstransmissionsovertheminimumnumberofhoppingchannelsspecifiedin thissection. Theincorporationofintelligencewithinafrequencyhoppingspreadspectrumsystemthatpermits thesystemtorecognizeotheruserswithinthespectrumbandsothatitindividuallyand independentlychoosesandadaptsitshopsetstoavoidhoppingonoccupiedchannelsispermitted. Thecoordinationoffrequencyhoppingsystemsinanyothermannerfortheexpresspurposeof avoidingthesimultaneousoccupancyofindividualhoppingfrequenciesbymultipletransmittersis notpermitted. Complianceforsection15.247(a)(1) AccordingtoBluetoothCoreSpecification,thepseudorandomsequencemaybegeneratedinanine- stageshiftregisterwhose5thand9thstage outputsareaddedinamodulo-twoadditionstage.Andtheresultisfedbacktotheinputofthefirst stage.ThesequencebeginswiththefirstONEof9consecutiveONEs;i.e.theshiftregisterisinitialized withnineones. •Numberofshiftregisterstages:9 •Lengthofpseudo-randomsequence:2 9 -1=511bits •Longestsequenceofzeros:8(non-invertedsignal) AnexampleofPseudorandomFrequencyHoppingSequenceasfollow: Eachfrequencyusedequallyontheaveragebyeachtransmitter. AccordingtoBluetoothCoreSpecification,BluetoothreceiversaredesignedtohaveinputandIF bandwidthsthatmatchthehoppingchannelbandwidthsofanyBluetoothtransmittersandshift frequenciesinsynchronizationwiththetransmittedsignals. Complianceforsection15.247(g) AccordingtoBluetoothCoreSpecification,theBluetoothsystemtransmitsthepacketwiththe pseudorandomhoppingfrequencywithacontinuousdataandtheshortbursttransmissionfromthe Bluetoothsystemisalsotransmittedunderthefrequencyhoppingsystemwiththepseudorandom hoppingfrequencysystem. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:76of109 Complianceforsection15.247(h) AccordingtoBluetoothCorespecification,theBluetoothsystemincorporateswithanadaptive systemtodetectotheruserwithinthespectrumbandsothatitindividuallyandindependentlyto avoidhoppingontheoccupiedchannels. AccordingtotheBluetoothCorespecification,theBluetoothsystemisdesignednothavetheability tocoordinatedwithotherFHSSSysteminanefforttoavoidthesimultaneousoccupancyofindividual hoppingfrequenciesbymultipletransmitter. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20230200163E-01 Page:77of109 5.11 RadiatedSpuriousEmission&Restrictedbands TestRequirement:47CFRPart15CSection15.209and15.205 TestMethod:ANSIC63.10:2013 TestSite:MeasurementDistance:3m(Semi-AnechoicChamber) ReceiverSetup: FrequencyDetectorRBWVBWRemark 0.009MHz-0.090MHzPe…

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Contact Information

Applicant

Wu Dajun

[email protected]4006-123-55Fax: 4006-123-56

Test Firm

Shenzhen Huaxia Testing Technology Co., LtdJack Ai

[email protected]+8613902988375

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.40 GHz - 2.48 GHz	1.00 mW

Confidentiality

Long Term

Grant Notes

RF output power listed is conducted.

Other Applications from Shenzhen DO Intelligent Technology Co., Ltd.

2AHFT7932

Smart Watch

Sep 15, 2024

Equipment Class

DTS - Digital Transmission System

2AHFT853

Smart Watch

Aug 13, 2024

Equipment Class

DTS - Digital Transmission System

2AHFT7604

Smart Watch

Aug 01, 2024

Equipment Class

DTS - Digital Transmission System

2AHFT7854

TD-LTE Wireless Data Terminal

Jun 16, 2024

Equipment Class

PCE - PCS Licensed Transmitter held to ear

2AHFT544

Smart Watch

Mar 24, 2024

Equipment Class

DSS - Part 15 Spread Spectrum Transmitter

Documents & Files

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Users Manual

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Attestation Statements

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

Date:04/17/2018VCB_F-01:OperatingProceduresForm–FCCAuthorizationv02Page1of1 ShenzhenDOIntelligentTechnologyCo.,Ltd. Applicant’sSignature: Applicant’sname:WuDaju Attestation Statement Letter II Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-4-10 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC Application for FCC ID: 2AHFT507 Shenzhen DO Intelligent Technology Co., Ltd. certifies 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. Sincerely n

Attestation Statements

Cover Letter(s)

External Photos

ExternalPhotos

ID Label/Location Info

F C C I D : 2 A H F T 5 0 7 I C : 2 3 0 2 3 - 2 A H F T 5 0 7 IDW16 3mm

Internal Photos

InternalPhotos #2

RF Exposure Info

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Test Report

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Test Report

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Test Report

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Rule Parts

Frequency Range

Power Output

15C

2.40 GHz - 2.48 GHz

1.00 mW