2BFRU-C82Smart Watch

Shenzhen ZhiHuiJu Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 22, 2024 FCC ID: 2BFRU-C82 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Shenzhen ZhiHuiJu 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 ZhiHuiJu Technology Co., Ltd., 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 ZhiHuiJu Technology Co., Ltd. Address: Room A315, Block A, Huafeng International Robot Industrial Park, Gushu Xixiang, Baoan District, Shenzhen, China Contact Person: Xiaoqing Cai Tel.: +86-13392880316 Email: [email protected] Sincerely, Signature:

Shenzhen ZhiHuiJu Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: August 22, 2024 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BFRU-C82 Shenzhen ZhiHuiJu Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant Company Name: Shenzhen ZhiHuiJu Technology Co., Ltd. FRN: 0035258680 Address: Room A315, Block A, Huafeng International Robot Industrial Park, Gushu Xixiang, Baoan District, Shenzhen, China Signature: Contact Person: Xiaoqing Cai Tel: +86-13392880316 Email: [email protected]

Page 1 of 3 1. General Information 1.1 Antenna Information Manufacturer: Shenzhen ZhiHuiJu Technology Co., Ltd Address of Manufacturer: Room A315, Block A, Huafeng International Robot Industrial Park, Gushu Xixiang, Baoan District, Shenzhen, China Product Name: 2.4GHz Antenna Model Name: C82 Frequency Range: 2400MHz - 2483.5MHz Type of Antenna: Integral Antenna Antenna Gain: 0.08dBi (Max.) Impedance: 50 ohm Antenna View: Length * Width (2.3cm * 0.1cm) Page 2 of 3 2. Antenna Specification information 2.1 Gain Frequency Peak Gain (dBi) Polarity 2402MHz 0.08 Horizontal 2402MHz -0.10 Vertical 2442MHz -0.21 Horizontal 2442MHz -0.51 Vertical 2480MHz -0.18 Horizontal 2480MHz --0.32 Vertical Page 3 of 3 2.2 Radiation Pattern View

Shenzhen ZhiHuiJu Technology Co., Ltd Date: August 22, 2024 Product Model Number: C82, C82 Pro FCC ID: 2BFRU-C82 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 QAI LABORATORIES LTD. 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 QAI LABORATORIES LTD. on our behalf shall have the same effect as acts of our own. By: Xiaoqing Cai Contact Listed on FCC Wesbite Title: Sales Manager Email: [email protected] Telephone: +86-13392880316 On behalf of: Shenzhen ZhiHuiJu Technology Co., Ltd.

Shenzhen ZhiHuiJu Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 23, 2024 Subject; Request for Confidentiality FCC ID: 2BFRU-C82 To Whom It May Concern, Pursuant to the provisions of the Commission’s 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 Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices 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: Xiaoqing Cai Title: Sales Manager

Report No: SSP24070361-1E FCC ID: 2BFRU-C82 Annex of Test Report Annex A. EUT External Photos EUT View 1 EUT View 2 Report No: SSP24070361-1E FCC ID: 2BFRU-C82 Annex of Test Report EUT View 3 EUT View 4 Report No: SSP24070361-1E FCC ID: 2BFRU-C82 Annex of Test Report EUT View 5 EUT View 6 Report No: SSP24070361-1E FCC ID: 2BFRU-C82 Annex of Test Report EUT View 7 EUT View 8

Shenzhen ZhiHuiJu Technology Co., Ltd. Model Difference Statement Dear Sir/Madam, Added models C82 Pro basis of the original product C82. The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Sincerely, Name: Xiaoqing Cai Title: Sales Manager Company name: Shenzhen ZhiHuiJu Technology Co., Ltd. Address: Room A315, Block A, Huafeng International Robot Industrial Park, Gushu Xixiang, Baoan District, Shenzhen, China

FCC ID: 2BFRU-C82 RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. e, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BLE Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit -1.38 -1(±1) 0 1 2480 5 0.31496 3.0 So a SAR test is not required

CCUT Testing & Certification Report No: SSP24070361-1E FCC Test Report Page 1 of 33 FCC TEST REPORT FCC ID: 2BFRU-C82 Report No. : SSP24070361-1E Applicant : Shenzhen ZhiHuiJu Technology Co., Ltd Product Name : Smart watch Model Name : C82 Test Standard : FCC Part 15.247 Date of Issue : 2024-08-22 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. CCUT Testing & Certification Report No: SSP24070361-1E FCC Test Report Page 2 of 33 Test Report Basic Information Applicant..................................: Shenzhen ZhiHuiJu Technology Co., Ltd Address of Applicant...............: Room A315, Block A, Huafeng International Robot Industrial Park, Gushu Xixiang, Baoan District, Shenzhen, China Manufacturer..........................: Shenzhen ZhiHuiJu Technology Co., Ltd Address of Manufacturer........: Room A315, Block A, Huafeng International Robot Industrial Park, Gushu Xixiang, Baoan District, Shenzhen, China Product Name.........................: Smart watch Brand Name.............................: - Main Model..............................: C82 Series Models..........................: C82 Pro Test Standard..........................: FCC Part 15 Subpart C KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.4-2014 ANSI C63.10-2013 Date of Test .............................: 2024-08-08 to 2024-08-21 Test Result...............................: PASS Tested By ................................: (Leonis Cai) Reviewed By............................: (Lieber Ouyang) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. CCUT Testing & Certification Report No: SSP24070361-1E FCC Test Report Page 3 of 33 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results ................................…

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