2BVUD-BST0155Smart Power Bank

Shenzhen Besiter Power Bank Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [May 8, 2026] U.S. Agent Designation [Shenzhen Besiter Power Bank Co.,Ltd.] 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: 2BVUD-BST0155 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [Shenzhen Besiter Power Bank Co.,Ltd.]. [Shenzhen Besiter Power Bank Co.,Ltd.] with the FRN [0038343786] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 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. Sincerely, Signature Signature [Jordan Deng] [Huiying Fan] [Project Engineer] [Director] [Shenzhen Besiter Power Bank Co.,Ltd.] [GLOCERTS TECHNOLOGY INC]

Shenzhen Besiter Power Bank Co.,Ltd. (May 8, 2026) 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: 2BVUD-BST0155 [Shenzhen Besiter Power Bank 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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Jordan Deng Shenzhen Besiter Power Bank Co.,Ltd. (May 8, 2026) 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: 2BVUD-BST0155 [Shenzhen Besiter Power Bank 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) Jordan Deng

Shenzhen Besiter Power Bank Co.,Ltd. (May 8, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Smart Power Bank / BST-0155 / FCC ID: 2BVUD-BST0155) 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: Jordan Deng Title: Project Engineer

Shenzhen Besiter Power Bank Co.,Ltd. (May 8, 2026) 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: Jordan Deng Title: Project Engineer

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: BST-0155 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

1. 工艺要求: 丝印 2. 油墨类型UV油漆 3. 没有激光雕刻的实线边框 4. 所有的材料都必须符合RoHS和REACH的要求。 技术要求 版本 A0 变更描述 A1 变更履历未注公差 工程师 投影方式：关键部位:影响装配效果用“ ”表示。 日期尺寸范围 1-3 3-6 6-10 10-30 30-80 80-300 容许差 审核 ±0.05 批准 拟制 BST-0155底壳 深圳市倍斯特科技股份有限公司 刘少武 材质工艺 尺寸 品名 日期 日期 日期2026.04.27 新料 1：1 1：1 mm 单位 比例 丝印镭雕 比例编号 图号 版本/版次 A0 ±0.08 ±0.10 ±0.10 ±0.15 ±0.20 White 147.5mm 69.8mm 壳料颜色PANTONE 1645 C

Ver. A.1 Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 / 17 EMC TEST REPORT Test item description: Smart Power Bank FCC ID: 2BVUD-BST0155 Trademark(s): Besiter Model/Type reference: BST-0155 S/N: / Report No.: CTB26040904704E01 Applicant’s name: Shenzhen Besiter Power Bank Co.,Ltd. Address: Building 65/66 Longwangmiao Industrial Park, Baishixia Community, Fuyong Subdistrict, BaoAn District, Shenzhen, Guangdong, China Manufacturer: Shenzhen Besiter Power Bank Co.,Ltd. Address: Building 65/66 Longwangmiao Industrial Park, Baishixia Community, Fuyong Subdistrict, BaoAn District, Shenzhen, Guangdong, 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 Date of Receipt: Apr. 09, 2026 Date of Test(s): Apr. 09, 2026 to Apr. 28, 2026 Date of Issue: Apr. 28, 2026 Test Standard(s): CFR47, FCC Part 15 Subpart B, ANSI C63.4: 2014 Test Result: Pass In the configuration tested, the EUT complied with the standards specified above. 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. The tested sample(s) and the sample information are provided by the applicant. The authenticity, accuracy, and completeness of the provided information are the sole responsibility of the applicant. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The result decision rules of our laboratory are based solely on the direct comparison between the actual measured values of test results and the standard limits, without considering the measurement uncertainty.“” indicates the testing items were fulfilled by subcontracted lab. “ ” indicates the items are not in CNAS accreditation scope. Compiled by: Reviewed by: Approved by: Black cai Bin Mei Rita Xiao Report No.: CTB26040904704E01 Ver. A.1 Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 / 17 Table of Contents 1. Description of version ....................................................................................................................................... 3 2. Test summary ..................................................................................................................................................... 4 3. Measurement uncertainty ................................................................................................................................. 5 4. General information ........................................................................................................................................... 6 4.1. Description of EUT ............................................................................................................................. 6 4.2. Description of accessory device ....................................................................................................... 6 4.3. Test conditions .................................................................................................................................... 6 4.4. Block diagram of EUT configuration ................................................................................................. 6 4.5. Operating condition of EUT ............................................................................................................... 6 5. List of Test and Measurement Instruments .................................................................................................... 8 6. Conducted Emission ....................................................................................................................................... 10 6.1. Limit ................................ .....................................................................................................................10 6.2. Test setup ...........................................................................................................................................10 6.3. EMI test receiver setup .....................................................................................................................10 6.4. Test procedure ...................................................................................................................................10 6.5. Test results .........................................................................................................................................11 7. Radiated emissions ......................................................................................................................................... 13 7.1. Limit .....................................................................................................................................................13 7.2. Test setup ...........................................................................................................................................13 7.3. EMI test receiver setup and spectrum analyzer setup ..................................................................14 7.4. Test procedure ...................................................................................................................................14 7.5. Corrected Amplitude & Margin Calculation .....................................................................................14 7.6. Test results .........................................................................................................................................15 8. Photographs of test setup .............................................................................................................................. 17 Report No.: CTB26040904704E01 Ver. A.1 Tel: 4008-707-283 Web: http://www.ctb-…

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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: BST-0155 Radiated Emission Below 1G Conducted emissions