2BFLK-K88Access control

(Shenzhen Jiuai Technology Co., Ltd) (March 27, 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: 2BFLK-K88) [Shenzhen Jiuai 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) Chenglong Ning (Shenzhen Jiuai Technology Co., Ltd) (March 27, 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: 2BFLK-K88) [Shenzhen Jiuai 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) Chenglong Ning

Shenzhen Jiuai Technology Co., Ltd (Applicant and U.S Agent are Separate Parties) TO： Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia,MD 21046,USA ATTENTION: FCC Certification - Section 2.911(d)(7) Information Designated U.S. Acett Company Name: Quirarte's Imports Inc FRN：0034562744 Contact Name：zhu hua wen Company address：3625 N Parkway Dr, Fresno, CA 93722, USA Telephone No：13802938527 Email：[email protected] This letter is to confirm that we (Quirarte's Imports Inc) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S.Agent Signature： Date：2023/12/6 Signed by (Printed Name/Title)：zhu hua wen The Applicant acknowledges that they must maintain an agent for no less than and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S.Agent information above changes. Applicant Company name：Shenzhen Jiuai Technology Co., Ltd FCC ID：2BFLK-K88 FRN: 0035185404 Contact Name：Chenglong Ning Address：104, Building 7, Zone B, Fifth Industrial Zone, Gonghe Community, Shajing Street, Baoan District, Shenzhen, China Telephone No：13538214502 Email：[email protected] Applicant Signature： Date：2023/12/6 Signed by (Printed Name/Title)：Chenglong Ning / manager

Shenzhen Jiuai Technology Co., Ltd Model Difference Data：March 27, 2024 Product description: Access control Model name: K88, C60, K3 Trade Name: NCLTHS FCC ID: 2BFLK-K88 All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : Chenglong Ning（manager） Contact information / address：104, Building 7, Zone B, Fifth Industrial Zone, Gonghe Community, Shajing Street, Baoan District, Shenzhen, China

Shenzhen Jiuai Technology Co., Ltd (March 27, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Access control / K88, C60, K3 / FCC ID: 2BFLK-K88 ) 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: Chenglong Ning Title: manager

Shenzhen Jiuai Technology Co., Ltd (March 27, 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: Chenglong Ning Title: manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: K88 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: 2BFLK-K88 Model No.: K88

Shenzhen CTB Testing Co., Ltd. FCC ID:2BFLK-K88 Portable device Per § 1.1307(b)(3)(i)(A), a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption. 125kHz: Note:dbm=dbuv/m-95.2=73.05-95.2=-22.15dBm(EIRP), so the maximun averaged power power=0.0061mW Conclusion: For the max result : 0.0061≤ FCC Limit 1mW for 1g SAR.

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

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director 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: Access control FCC ID: 2BFLK-K88 Trademark: NCLTHS Model Number: K88, C60, K3 Prepared For: Shenzhen Jiuai Technology Co., Ltd Address: 104, Building 7, Zone B, Fifth Industrial Zone, Gonghe Community, Shajing Street, Baoan District, Shenzhen, China Manufacturer: Shenzhen Jiuai Technology Co., Ltd Address: 104, Building 7, Zone B, Fifth Industrial Zone, Gonghe Community, Shajing Street, Baoan District, Shenzhen, 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: Mar. 18, 2024 Sample tested Date: Mar. 18, 2024 to Mar. 26, 2024 Issue Date: Mar. 26, 2024 Report No.: CTB240326057RFX Test Standards FCC Part 15 C Test Results PASS Remark: This is 125kHz test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240326057RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 19 TABLE OF CONTENTS 1. GENERAL INFORMATION ........................................................................................................................ 3 1.1. Report information ................................................................................................................................. 3 1.2. Measurement Uncertainty ..................................................................................................................... 3 1.3. Test Facility ........................................................................................................................................... 3 1.4. Test Uncertainty .................................................................................................................................... 4 2. PRODUCT DESCRIPTION ......................................................................................................................... 5 2.1. EUT Description .................................................................................................................................... 5 2.2. Block Diagram of EUT Configuration ..................................................................................................... 5 2.3. Test Conditions ..................................................................................................................................... 5 2.4. DescriptionOfSupport Units (Conducted Mode) .................................................................................... 6 3. TEST RESULTS SUMMARY ...................................................................................................................... 7 4. TEST EQUIPMENT USED .......................................................................................................................... 8 4.1. MEASUREMENT INSTRUMENTS LIST ............................................................................................... 8 5. CONDUCTED EMISSION TEST ............................................................................................................... 10 5.1. Block Diagram of Test Setup ............................................................................................................... 10 5.2. Test Standard ...................................................................................................................................... 10 5.3. Conducted Emission Limit ................................................................................................................... 10 5.4. EUT Configuration on Test .................................................................................................................. 10 5.5. Operating Condition of EUT ................................................................................................................ 10 5.6. Test Procedure .................................................................................................................................... 11 5.7. Test Result .......................................................................................................................................... 11 6. RADIATED EMISSION MEASUREMENT ................................................................................................ 12 6.1. Block Diagram of Test Setup ............................................................................................................... 12 6.2. Test Standard ...................................................................................................................................... 13 6.3. EMI Test Receiver Setup..................................................................................................................... 13 6.4. Test Procedure .................................................................................................................................... 13 6.5. Test Result .......................................................................................................................................... 13 7. OCCUPIED BANDWIDTH ........................................................................................................................ 17 7.1. Block Diagram of Test Setup .......................................................…

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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: K88 Radiated Emission 9KHz-30MHz 30MHz-1GHz