2BH5J-D31U4G GPS tracker watch

Hong Kong Yushengchang Technology Co.,Limited Unit 1801 18/F office plus @Wan Chai No.303 Hennessy Road,Wanchai HK China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-8-5 To whom it may concern: We, Hong Kong Yushengchang Technology Co.,Limited, hereby certify that the equipment for which authorization is sought (FCC ID: 2BH5J-D31U) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Guixia Wu Manager Hong Kong Yushengchang Technology Co.,Limited 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V03

Hong Kong Yushengchang Technology Co.,Limited Unit 1801 18/ F office plus @Wan Chai No.303 Hennessy Road, Wanchai HK, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024/08/05 U.S. Agent Designation Hong Kong Yushengchang Technology Co.,Limited acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BH5J-D31U): Name and company of U.S. agent: GSS SERVICE INC Physical U.S. address of agent: 6547 N Academy Blvd #2266 Colorado Springs COLORADO 80918 United States FRN of U.S. agent: 0033402082 Email address of U.S. agent: [email protected] GSS SERVICE INC acknowledges their obligation to accept service of process on behalf of Hong Kong Yushengchang Technology Co.,Limited Hong Kong Yushengchang Technology Co.,Limited with the FRN [0035778133] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Guixia Wu Manager Hong Kong Yushengchang Technology Co.,Limited Signature Michoux Logan PM GSS SERVICE INC 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

Hong Kong Yushengchang Technology Co.,Limited Add: Unit 1801 18/F office plus @Wan Chai No.303 Hennessy Road,Wanchai HK China Date: 2024-8-5 FCC ID: 2BH5J-D31U Dear Sir/Madam, We, Hong Kong Yushengchang Technology Co.,Limited Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: 4G GPS tracker watch Model no.: D31U, D41 Sincerely, Name/Title： Guixia Wu/Manager Company: Hong Kong Yushengchang Technology Co.,Limited Address: Unit 1801 18/F office plus @Wan Chai No.303 Hennessy Road,Wanchai HK China Phone: 15013472254 Fax: N/A E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2024-8-5> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2BH5J-D31U D31U For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Guixia Wu/Manager Company: Hong Kong Yushengchang Technology Co.,Limited Address: Unit 1801 18/F office plus @Wan Chai No.303 Hennessy Road,Wanchai HK China Phone: 15013472254 Fax: N/A E-Mail: [email protected]

Hong Kong Yushengchang Technology Co.,Limited Unit 1801 18/F office plus @Wan Chai No.303 Hennessy Road,Wanchai HK China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-8-5 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2BH5J-D31U including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Guixia Wu/Manager Company: Hong Kong Yushengchang Technology Co.,Limited Address: Unit 1801 18/F office plus @Wan Chai No.303 Hennessy Road,Wanchai HK China Phone: 15013472254 Fax: N/A E-Mail: [email protected]

FCC ID: 2BH5J-D31U External Photos of the EUT FCC ID: 2BH5J-D31U FCC ID: 2BH5J-D31U

Label and Location Size: L: 1.0cm*W: 0.2cm Label and Location FCC ID : 2BH5J-D31U

FCC ID: 2BH5J-D31U Internal Photos of the EUT FCC ID: 2BH5J-D31U FCC ID: 2BH5J-D31U LTE ANT 2.4GWIFI ANT FCC ID: 2BH5J-D31U FCC ID: 2BH5J-D31U FCC ID: 2BH5J-D31U

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China TEST REPORT Report Reference No. ..................... : FCC ID ............................................ : CTA24071600207 2BH5J-D31U Compiled by ( position+printed name+signature) .. : File administrators Jinghua Xiao Supervised by ( position+printed name+signature) .. : Project Engineer Xudong Zhang Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : July 30, 2024 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................ : Hong Kong Yushengchang Technology Co.,Limited Address ............................................ : Unit 1801 18/ F office plus @Wan Chai No.303 Hennessy Road , Wanchai HK, China Test specification ........................... : Standard ........................................... : IEC 62209-2:2010; IEEE 1528:2013; FCC 47 CFR Part 2.1093; ANSI/IEEE C95.1:2005; Reference FCC KDB 447498; KDB 248227; KDB 616217; KDB 941225; KDB 865664 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ...................... : 4G GPS tracker watch Trade Mark ....................................... : Manufacturer .................................... : Shenzhen Yushengchang Technology Co.,LTD Model/Type reference ....................... : D31U Listed Models .................................. : D41 Rating ............................................... : DC 3.8V From battery and DC 5.0V From external circuit Result ............................................... : PASS Report No.: CTA24071600207 Page 2 of 105 T E S T R E P O R T Equipment under Test : 4G GPS tracker watch Model /Type : D31U Listed Models : D41 Applicant : Hong Kong Yushengchang Technology Co.,Limited Address : Unit 1801 18/ F office plus @Wan Chai No.303 Hennessy Road, Wanchai HK, China Manufacturer : Shenzhen Yushengchang Technology Co.,LTD Address : F6, Jinhai building, songgang Town, Bao’an Zone, Shenzhen, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA24071600207 Page 3 of 105 Contents 1 Statement of Compliance ............................................................................................................................. 6 2 General Information ..................................................................................................................................... 7 2.1 General Remarks ............................................................................................................................................. 7 2.2 Description of Equipment Under Test (EUT) ..................................................................................................... 7 2.3 Device Category and SAR Limits ..................................................................................................................... 8 2.4 Applied Standard .............................................................................................................................................. 8 2.5 Test Facility ....................................................................................................................................................... 9 2.6 Environment of Test Site ................................................................................................................................... 9 2.7 Test Configuration ............................................................................................................................................. 9 3 Specific Absorption Rate (SAR) ................................................................................................................. 10 3.1 Introduction ..................................................................................................................................................... 10 3.2 SAR Definition ................................................................................................................................................ 10 4 SAR Measurement System ........................................................................................................................ 11 4.1 E-Field Probe ................................................................................................................................................... 11 4.2 Data Acquisition Electronics (DAE) ................................................................................................................. 12 4.3 Robot .............................................................................................................................................................. 13 4.4 Measurement Server ...................................................................................................................................... 13 4.5 Phantom ......................................................................................................................................................... 14 4.6 Device Holder ................................................................................................…

Text truncated - open the document above for the full version.

Report No.: CTA24071600207 Page 81 of 105 Report No.: CTA24071600207 Page 82 of 105 Report No.: CTA24071600207 Page 83 of 105 Report No.: CTA24071600207 Page 84 of 105 Report No.: CTA24071600207 Page 85 of 105 Report No.: CTA24071600207 Page 86 of 105 Report No.: CTA24071600207 Page 87 of 105 Report No.: CTA24071600207 Page 88 of 105 Report No.: CTA24071600207 Page 89 of 105 Report No.: CTA24071600207 Page 90 of 105 Report No.: CTA24071600207 Page 91 of 105 Report No.: CTA24071600207 Page 92 of 105 Report No.: CTA24071600207 Page 93 of 105 Report No.: CTA24071600207 Page 94 of 105 Report No.: CTA24071600207 Page 95 of 105 Report No.: CTA24071600207 Page 96 of 105 Report No.: CTA24071600207 Page 97 of 105 Report No.: CTA24071600207 Page 98 of 105 Report No.: CTA24071600207 Page 99 of 105 Report No.: CTA24071600207 Page 100 of 105 Report No.: CTA24071600207 Page 101 of 105 Report No.: CTA24071600207 Page 102 of 105 Report No.: CTA24071600207 Page 103 of 105 Report No.: CTA24071600207 Page 104 of 105 Report No.: CTA24071600207 Page 105 of 105 *****END OF REPORT*****

1. Antenna Description: Antenna type PIFA antenna Model D31U-WWLAN Frequency range 2400-2500MHz Manufacturer Shenzhen Yushengchang Technology Co.,LTD ANT Peak Gain GSM850(824.2MHz-848.8MHz):1.00 dbi, DCS1900(1850.2MHz-1909.8MHz): 1.00 dbi, FDD Band II(1852.4-1907.6Mhz): 1.00 dbi, FDD Band V(826.40-846.00): 1.00 dbi, LTE Band 2(1850 – 1910MHz): 1.00 dbi, LTE Band 5(824 – 849MHz): 1.00 dbi, LTE Band 7(2500 MHz -2570MHz): 1.00 dbi, 2. Antenna Photo: Length: 57mm Width: 9mm

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China FCC PART 22/24 TEST REPORT FCC Part 22 /Part 24 Report Reference No. .....................: FCC ID. .............................................: CTA24071600202 2BH5J-D31U Compiled by ( position+printed name+signature) .. : File administrators Jinghua Xiao Supervised by ( position+printed name+signature) .. : Project Engineer Xudong Zhang Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : Jul. 26, 2024 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................ : Hong Kong Yushengchang Technology Co.,Limited Address ............................................ : Unit 1801 18/ F office plus @Wan Chai No.303 Hennessy Road, Wanchai HK, China Test specification ........................... : Standard ........................................... : FCC Part 22: PUBLIC MOBILE SERVICES FCC Part 24: PERSONAL COMMUNICATIONS SERVICES Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: 4G GPS tracker watch Trade Mark ....................................... : Manufacturer .................................... : Shenzhen Yushengchang Technology Co.,LTD Model/Type reference....................... : D31U Ratings ............................................. : DC 3.8V From battery and DC 5.0V From external circuit Frequency .......................................... GSM 850MHz; PCS 1900MHz; Modulation ....................................... : GMSK GPRS................................................. Supported Result................................................ : PASS Report No.: CTA24071600202 Page 2 of 40 T E S T R E P O R T Equipment under Test : 4G GPS tracker watch Model /Type : D31U Listed Models : D41 Applicant : Hong Kong Yushengchang Technology Co.,Limited Address : Unit 1801 18/ F office plus @Wan Chai No.303 Hennessy Road, Wanchai HK, China Manufacturer : Shenzhen Yushengchang Technology Co.,LTD Address : F6, Jinhai building, songgang Town, Bao’an Zone, Shenzhen, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA24071600202 Page 3 of 40 Contents 1 TEST STANDARDS ...................................................................................................................................... 4 2 SUMMARY .................................................................................................................................................... 5 2.1 General Remarks .............................................................................................................................. 5 2.2 Product Description ........................................................................................................................... 5 2.3 Equipment under Test ....................................................................................................................... 5 2.4 Short description of the Equipment under Test (EUT) ...................................................................... 6 2.5 EUT configuration .............................................................................................................................. 6 2.6 Related Submittal(s) / Grant (s) ......................................................................................................... 6 2.7 Modifications ...................................................................................................................................... 6 2.8 General Test Conditions/Configurations ........................................................................................... 6 2.9 Modifications ...................................................................................................................................... 6 3 TEST ENVIRONMENT ................................................................................................................................. 7 3.1 Address of the test laboratory............................................................................................................ 7 3.2 Test Facility ....................................................................................................................................... 7 3.3 Environmental conditions .................................................................................................................. 7 3.4 Test Description ................................................................................................................................. 7 3.5 Equipments Used during the Test ..................................................................................................... 9 4 TEST CONDITIONS AND RESULTS ......................................................................................................... 11 4.1 Output Power ................................................................................................................................... 11 4.2 Radiated Spurious Emssion ..............................................................................…

Text truncated - open the document above for the full version.