FCC ID: 2AHFT841 Smart Watch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IDW26 5X5mm 7X3.5mm 10.4X3mm I C

2 3 0 2 3

2 A H F T 841 6.8X5mm 5X7mm IDW26 841 T F H A 2

D I C C F

 

 

Date2023-12-26 Shenzhen DO Intelligent Technology Co., Ltd Product Model Number:IDW19, IDW25, IDW26 FCC ID2AHFT841 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:

Testing Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own

. By: Wu Dajun Contact Listed on FCC Wesbite Title: General Manager Email: wudj@idoosmart.com Telephone: 0755-82529675 On behalf of: Shenzhen DO Intelligent Technology Co., Ltd Effective Date: April 2, 2020 Revision Date:

QSF 7.6.4-8 Agent Authorization Letter Template Revision: 0 Page 1 of 1

 

 

Shenzhen DO Intelligent Technology Co., Ltd January 11, 2024 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Attn:

OET Dept. Ref:

FCC Class II Permissive change for FCC ID: 2AHFT841 Applicant: Shenzhen DO Intelligent Technology Co., Ltd Dear Examiner, This is to request a Class II Permissive change for FCC ID: 2AHFT841 originally granted on 01/04/2024 (date). The change under this application as above Model No.: IDW19, IDW25, IDW26 The model of product 1#2#3# is IDW19, the model of product 4#5#6# is IDW25, and the model of product 7#8#9# is IDW26. The difference between product 1# and product 4# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 5# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 6# is that the screen model, Watch appearance, Band shape, different including having different screen supplier. The difference between product 1# and product 7# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 8# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 9# is that the screen model, Watch appearance, Band shape, different including having different screen supplier. The key differences are the appearance and the model number. These changes do not affect RF performance. I attest that the certified device will not be capable of ad-hoc mode operation outside of the grant conditions. Sincerely, Name: Wu Dajun Date: January 11, 2024 Title:General manager Signature of applicant

 

 

Shenzhen DO Intelligent Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AHFT841 To Whom It May Concern, Date: January 2, 2024 Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name:Wu Dajun Title:General Manager

 

 

Shenzhen DO Intelligent Technology Co., Ltd Model Confirmation Letter We, Shenzhen DO Intelligent Technology Co., Ltd certify the product: Smart Watch Model No.: IDW19, IDW25, IDW26 The model of product 1#2#3# is IDW19, the model of product 4#5#6# is IDW25, and the model of product 7#8#9# is IDW26. The difference between product 1# and product 4# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 5# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 6# is that the screen model, Watch appearance, Band shape, different including having different screen supplier. The difference between product 1# and product 7# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 8# is that the screen model, motor modelis, Watch appearance, Band shape, different including having different screen supplier, motor supplier . The difference between product 1# and product 9# is that the screen model, Watch appearance, Band shape, different including having different screen supplier. The key differences are the appearance and the model number. These changes do not affect RF performance. Signiture:

Grantee Contact: Wu Dajun Company Name: Shenzhen DO Intelligent Technology Co., Ltd Date: January 11, 2024

 

 

 

 

 

 

 

 

 

 

Shenzhen DO Intelligent Technology Co., Ltd Address11th Floor, 3# Building, Guole Tech Park, Lirong Road, Dalang, Longhua District, Shenzhen, China FRN: 0025289893 Date: 2024-01-02 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCC Application for FCC ID: 2AHFT841 Shenzhen DO Intelligent Technology Co., Ltd certifies that, as of the date of the filing of the application, Cleveland International Trade Agency. is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen DO Intelligent Technology Co., Ltd accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Cleveland International Trade Agency accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information:

Name: Cleveland International Trade Agency Address: 4033 ST Clair Ave, Cleveland, OH 44103, USA FRN: 0033401837 Contact Person: Becky Deng Tel.: 216-600-0606 Email: Georgewu7012@gmail.com Sincerely, Signed on behalf of Shenzhen DO Intelligent Technology Co., Ltd Signed on behalf of Cleveland International Trade Agency signature Name: Wu Dajun signature Name: Becky Deng Title: General manager Title: Manager Date: 2023-12-26 Date:2023-12-26

 

 

Shenzhen DO Intelligent Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-12-26 FCC ID: 2AHFT841 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Shenzhen DO Intelligent Technology Co., Ltd certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing 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. Applicant: Shenzhen DO Intelligent Technology Co., Ltd Address: 11th Floor, 3# Building, Guole Tech Park, Lirong Road, Dalang, Longhua District, Shenzhen, China Contact Person: Wu Dajun Tel.: 0755-82529675 Email: wudj@idoosmart.com Sincerely, Signature:

 

 

 

 

 

 

 

 

 

 

Admit it Welletronics Communication Technology Limited The manufacturer The name of the material Material code The version number V1.0 Bluetooth RF antenna 3.01.lDW13F1000 Project type IDW13 Specification/Color white Sign the sample date 2022.12.08 note 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 The product description:

The attachment 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 Supplier quality RoHS material no RoHS material Meet REACH requirements ID of Design Department The customer request ID Color confirmation Technical confirmation column Structural engineer Hardware engineer R&d quality Final confirmation Project Manager Confirm the size of 2D drawing files Specifications and technical requirements Confirm the size of 2D drawing files Specifications and technical requirements Focus on size marking control Electrical performance parameter Focus on size marking control Electrical performance parameter Test standard confirmation appearance Acknowledge the completeness of the documents Standardization of dimension marking (key dimensions) Standardization of dimension marking (key dimensions) Specifications and technical requirements appearance Other Environmen tal Requiremen ts Shell, hardware, key material Shell, hardware, key material The effect Shell, hardware, key material The effect function The effect Meet halogen-free requirement s Surface process confirmatio n Adapter validation function Adapter validation function Reliability verification Adapter validation Electrical performance parameter function The effect Admitted conditions Official recognition Set limit to admit Refuse to admit Distribution department IQC other ________ supplier The customer after-sales SQE/ Document control Welletronics Communication Technology Limited 1st, 2nd, and 3rd floors, No. 8 Tongfu Estate Industrial Zone, Xinshi Community, Dalang Street,Longhua District, Shenzhen QF-QMP-QA01-01 Page 1 Confidential Informatio Catalog One The cover 1 Two Directory.2 Three Change history 3 Four Electrical characteristics.....4-6 F i v e T h e 2 D d r a w i n g s . 7 SixFull-scale measurement report8 Seven Cpk Report9 Eight The RoHS report 10 NineSalt spray test 11 Ten High and Low Temperature Testing 12 ElevenMaterial quality proves 13 TwelveShipment packaging 14 Page 2 Three Change history Confidential Informatio Change of resume Serial number Date of change entry name Edition Change content Remarks 1 Dec 8, 2022 IDW13 BT antenna V1.0 nothing New issue Page 3 Confidential Informatio Four Electrical characteristics 1.Antenna Structure Antenna type:FPC Antenna Figure antenna structure 2. Test Results BT-Return Loss/VSWR BT-Return Loss/VSWR Page 4 Confidential Informatio 3. Test Repor No source by space test efficiency/pattern Free space Add the arm Freq

(MHz) 2400 2410 2420 2430 2440 2450 2460 2470 2480 Effi

(dB)

-4.14

-4.56

-4.62

-4.8

-4.8

-4.95

-5.21

-5.26

-5.41 Gain Effi

(dBi) 38.5 -0.18 35.0 -0.61 34.5 -0.42 33.1 -0.56 33.1 -0.69 32.0 -0.80 30.1 -1.11 29.8 -1.15 28.8 -1.34 Freq

(MHz) 2400 2410 2420 2430 2440 2450 2460 2470 2480 Effi

(dB)

-9.66

-9.97

-9.94

-10.05

-9.98

-10.07

-10.28

-10.26

-10.35 Effi

(%) 10.8 10.1 10.1 9.9 10.0 9.8 9.4 9.4 9.2 Gain

(dBi)

-6.01

-6.36

-6.38

-6.53

-6.49

-6.71

-6.86

-6.84

-7.06 Match The antenna E1ement E1 E2 E3 E4 Va1ue 1.2PF 0 Page 5 Confidential Informatio 3. The direction of figure Free space Page 7 Confidential Informatio Page 8 Confidential Informatio FiveThe 2D drawings Page 7 Confidential Informatio SixFull-scale measurement report 2 1 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 1 DIM. #

D I M E N S I O N DRAWING ZONE

T O L

T O L

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X X X X X X X X X Page 8 Confidential Informatio CPK Report Vendor Inspected Inches/MM Material Name Material Code Date WTT mm FPC 7-Dec-22 SevenCpk Report 759-075-01A01 IDW13 BT antenna Part Number Description Tool Number Cavity Revision R:A Dim. Designator Nominal

+ Tolerance(A11 5 7.26 0.15

- Tolerance

-0.15 Upper Limit Lower Limit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 MAX. MIN. AVERAGE STDEV CP Cpk TOOLING 7.41 7.11 7.25 7.29 7.29 7.23 7.28 7.28 7.20 7.22 7.28 7.28 7.25 7.22 7.20 7.23 7.20 7.24 7.21 7.28 7.28 7.20 7.23 7.20 7.24 7.21 7.26 7.26 7.24 7.27 7.28 7.20 7.29 7.20 7.24 0.03 1.55 1.38 CMM 9 13.30 0.15

-0.15 13.45 13.15 13.33 13.30 13.34 13.27 13.27 13.35 13.32 13.30 13.28 13.28 13.27 13.25 13.26 13.24 13.28 13.33 13.32 13.34 13.27 13.25 13.26 13.24 13.28 13.33 13.32 13.34 13.27 13.25 13.30 13.32 13.35 13.24 13.29 0.03 1.47 1.39 CMM Approved ByKun Yao Written ByJie Xiao Page 9 Confidential Informatio Eight The RoHS report W e l l e t r o n i c s C o m m u n i c a t i o n T e c h n o l o g y C O

, L t d E n v i r o n m e n t

C o n c e r n e d S t b s t a n c e r e p o r t N a m e s o f m a t e r i a l a n d t y p e I D W 1 3 B T a n t e n n a R o H S t e s t r e p o r t N O

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p a r t I f y e s w h c h i N O N O N O N O N O N O N o t h s i s u b s t a n c e Y e s o r D o y o u p r o d u c t s c o n t a n i H o w m u c h I l m p e m e n t 0 7

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k g s c h e d u e l Page 10 Confidential Informatio NineSalt spray test Customer AiDu Written By Jie Xiao Orig. Date Part Number 759-075-01A01 Revised By Kun Yao Revised Date Description1 IDW13 BT antenna Approved By TianHua Liu Approved Date 7-Dec-22 7-Dec-22 7-Dec-22 Salt spray test Starting at 09.00 on Dec 5, 2022 And end at 09.00 on Dec 7, 2022 A total of 48 hours of continuous spray 1Test operation status 2Test box temperature 3Saturated Air Bucket Temperature 4Specific gravity of salt spray test 5Specimen supported angle 6Compressed air pressure OK 35 47 5%

30 1kg/cm Time 17:00 on Dec 5 1:00 on Dec 6 9:00 on Dec 6 17:00 on Dec 6 1:00 on Dec 7 9:00 on Dec 7 Testing time Laboratory thermometer Saturated Air Barrel Temperature compressed air pressure kg/cm2 Machine running conditio n Remarks 8 16 24 32 40 48 35 35 35 35 35 35 47 47 47 47 47 47 1kg/cm2 1kg/cm2 1kg/cm2 1kg/cm2 1kg/cm2 1kg/cm2 OK OK OK OK OK OK Post-test status Determine Remarks No oxidation on coating surface and no foammg and falling off of ink OK 5PCS Date of trial Experimental operation NO 1 2 3 4 Remarks Approved ByKun Yao Written ByJie Xiao Page 11 Confidential Informatio Ten High and Low Temperature Testing High and Low Temperature Testing Customer Part Number Description1 AiDu 759-075-01A01 Written By Revised By Jie Xiao Kun Yao Orig. Date Revised Date IDW13 BT antenna Approved By TianHua Liu Approved Date Starting at 08:30 on 1 Dec ,2022 Ending at 08:30 on 3 Dec, 2022 Starting at 08:35 on 3 Dec, 2022 Ending at 10:35 on 3 Dec, 2022 Starting at 10:40 on 3 Dec, 2022 Ending at 10:40 on 5 Dec, 2022 Starting at 10:45 on 5 Dec ,2022 Ending at 12:45 on 5 Dec, 2022 Starting at 12:50 on 5 Dec ,2022 Ending at 12:50 on 7 Dec, 2022 Starting at 12:55 on 7 Dec ,2022 Ending at 14:55 on 7 Dec, 2022 7-Dec-22 7-Dec-22 7-Dec-22 Hot test60) Room temperature test(20) low temperature test(-20) Room temperature test(20) High Temperature and Humidity Test(60) Room temperature test(20) Total 150H Test Time Test time(h/m) Test box temperature() Air humidity intest box(%) Machine running condition 02/Dec/22 08 :30 A.M 03/Dec/22 08:30 A.M 03/Dec/22 10 :35 A.M 04/Dec/22 10:40 A.M 05/Dec/22 10 :40 A.M 05/Dec/22 12 :45 P.M 06/Dec/22 12 :50 P.M 07/Dec/22 12 :50 P.M 07/Dec/22 14 :55 P.M 24 48 2 24 48 2 24 48 2 59.91 60.01 20.07

-19.91

-20.02 19.97 59.92 60.04 20.01 95 95.10 OK OK OK OK OK OK OK OK OK Remarks High temperature section normal temperature section low temperature section normal temperature section High temperature and high humidity section normal temperature section Post-test status Determine Remarks No Foaning Abnormality On Ink Surface OK Test time Experimental operation NO 1 2 3 4 Revised ByKun Yao Written ByJie Xiao Page 12 Confidential Informatio ElevenMaterial quality proves 5 4 3 2 1 l a t e e l e c t r o p J i a h o n g t a i g o l d p l a t e d N i c k e l A 2 2 2 0 1 7 1 8 4 9 1 0 1 0 0 1 C N D N D N D N D N D N D N D N D N D N D 2 0 2 2

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2 2 N o t e M S D S TwelveShipment packaging Confidential Informatio Packing General requirements 1.State customer name, project name, model number 2.The pictures show the inner and outer cases, the packing method when shipping, the number of layers, the quantity of single layer, etc 3.Fill in the name and quantity of packing materials in the remarks column 4.Signature of quality supervisor, date Product material no 759-075-01A01 The product name IDW13 BT antenna Product version R:A The packing way Full page half cut package shipping Blister tray Every dish 1000pcs/bag Each box number 20000pcs/bag carton note Put each 1000pcs into PE bag with protective film protection;20 bags in one case, 20000pcs. Figure 1: single layer blister tray or other forms Figure 2: basic packing method of inner box Figure 3:

packing case Figure 4: outer packing label Figure 5: stacking of packing cases. Signature:Qinle Page 14

 

 

Date2023-12-26 Shenzhen DO Intelligent Technology Co., Ltd Product Model Number:IDW19-L FCC ID2AHFT841 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:

Testing Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Wu Dajun Contact Listed on FCC Wesbite Title: General Manager Email: wudj@idoosmart.com Telephone: 0755-82529675 On behalf of: Shenzhen DO Intelligent Technology Co., Ltd Effective Date: April 2, 2020 Revision Date:

QSF 7.6.4-8 Agent Authorization Letter Template Revision: 0 Page 1 of 1