2BMIV-CAFD42Car Key

Cambrian (Liaoning) Electronic Technology Co., Ltd. (December 3, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BMIV-CAFD42 [Cambrian (Liaoning) Electronic Technology Co., Ltd.] (“the applicant”) 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. Sincerely, (Applicant signature) (Applicant printed name) Wang Yifei Cambrian (Liaoning) Electronic Technology Co., Ltd. (December 3, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BMIV-CAFD42 [Cambrian (Liaoning) Electronic Technology Co., Ltd.] (“the applicant”) 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, (Applicant signature) (Applicant printed name) Wang Yifei

Cambrian (Liaoning) Electronic Technology Co., Ltd. (December 3, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Car Key / CA-FD42 / FCC ID: 2BMIV- CAFD42) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Wang Yifei Title: Manager

Cambrian (Liaoning) Electronic Technology Co., Ltd. (December 3, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Wang Yifei Title: Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: CA-FD42 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

FCC ID LABEL: Label Location: FCC ID: 2BMIV-CAFD42 Model No.: CA-FD42

Shenzhen CTB Testing Co., Ltd. FCC ID:2BMIV-CAFD42 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 433.928MHz: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion OOK 0.43393 -23.09 0.0049 -23±1 -22.00 0.0063 <5 0.00083 3.00 YES Note:dbm=dbuv/m-95.2-2.15=75.26-95.2-2.15=-22.09dBm(ERP), so the conduct peak power=- 22.09-1=-23.09dBm Conclusion: For the max result : 0.00083≤ FCC Limit 3.0 for 1g SAR.

ANT PHTOT All measurements were performed radiated and therefore additional antenna gain documentation is not required.

Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 24 TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director The test report is effective only with both signature and specialized stamp. This result(s) shown in this report r Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: Car Key FCC ID: 2BMIV-CAFD42 Trademark: keylessbest Model Number: CA-FD42 Prepared For: Cambrian (Liaoning) Electronic Technology Co., Ltd. Address: No.263, Yueling Road, Anshan, Liaoning, China Manufacturer: Cambrian (Liaoning) Electronic Technology Co., Ltd. Address: No.263, Yueling Road, Anshan, Liaoning, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Nov. 19, 2024 Sample tested Date: Nov. 19, 2024 to Nov. 30, 2024 Issue Date: Nov. 30, 2024 Report No.: CTB241130001RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.231 ANSI C63.10:2013 Test Results PASS Remark: This is 433MHz radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB241130001RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 24 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................................................................................... 3 2. TEST SUMMARY ............................................................................................................................. 4 3. MEASUREMENT UNCERTAINTY ................................................................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................. 6 4.1 Product Information ............................................................................................................................ 6 4.2 Test Setup Configuration ................................................................................................................... 6 4.3 Support Equipment ............................................................................................................................ 6 4.4 Test Mode .......................................................................................................................................... 6 4.5 Test Environment ............................................................................................................................... 6 5. TEST FACILITY AND TEST INSTRUMENT USED ......................................................................... 7 5.1 Test Facility ........................................................................................................................................ 7 5.2 Test Instrument Used ......................................................................................................................... 7 6. AC POWER LINE CONDUCTED EMISSION .................................................................................... 9 6.1 Block Diagram Of Test Setup ............................................................................................................. 9 6.2 Limit .................................................................................................................................................... 9 6.3 Test procedure ................................................................................................................................... 9 6.4 Test Result ....................................................................................................................................... 10 7. RADIATED EMISSION ................................................................................................................... 11 7.1 Block Diagram Of Test Setup ........................................................................................................... 11 7.2 Limit .................................................................................................................................................. 11 7.3 Test procedure ................................................................................................................................. 12 7.4 Test Result ....................................................................................................................................... 13 8. DWELL TIME .................................................................................................................................. 19 8.1 Block Diagram Of Test Setup ........................................................................................................... 19 8.2 Limit .................................................................................................................................................. 19 8.3 Test procedure ................................................................................................................................. 19 8.4 Test Result ....................................................................................................................................... 20 9. OCCUPIED BANDWIDTH .............................................................................................................. 21 9.1 Block Diagra…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 1 Model: CA-FD42 Radiated Emission Below 1G Above 1G