2A6QM-WMO10C-221Fast Charging Power Bank

Shenzhen Romoss Technology Co., Ltd. Covered Equipment Certification Attestation Letter 2024-08-27 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:2A6QM-WMO10C-221 Shenzhen Romoss 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Shenzhen Romoss 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. Signed: Printed name: Leo Qin Title: Manager Company Name: Shenzhen Romoss Technology Co., Ltd. Address: Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Phone: 13691887725 E-Mail: [email protected] Date: 2024-08-27

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: FCC US Agent, LLC FRN: 0033402884 Contact Name: Tim Payne Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Telephone No: 708-571-3148 Email: [email protected] Applicant: Company name: Shenzhen Romoss Technology Co., Ltd. Product Description: Fast Charging Power Bank Grantee code: 2A6QM FCC ID: 2A6QM-WMO10C-221 FRN：0032361081 Contact Name: Leo Qin Address: Room1601, BLOCK B, Building 7,Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, Nanshan , Shenzhen，Guangdong, P.R.China Telephone No: 13691887725 Email: [email protected] Shenzhen Romoss Technology Co., Ltd. certifies that, as of the date of this filing of the application with the TCB, [FCC US Agent, LLC] is our designated US agent for service of process for the above referenced FCC ID. Shenzhen Romoss Technology Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [FCC US obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2024-08-27 Applicant’s Name: Leo Qin US Agent’s Name: Tim Payne Title: Manager Title: Manager Signature： Signature

Shenzhen Romoss Technology Co., Ltd. 2024-08-27 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Damon Hu, Guangdong Dongdian Testing Service Co.,Ltd.( Unit 2, Building 1, No.17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808), to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Printed name: Leo Qin Title: Manager Company Name: Shenzhen Romoss Technology Co., Ltd. Address: Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Phone: 13691887725 E-Mail: [email protected] Date: 2024-08-27

Shenzhen Romoss Technology Co., Ltd. 2024-08-27 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: 2A6QM-WMO10C-221 Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of insert number of 180 days (cannot exceed 180 days) days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☒ Short Term Internal Photos ☐ Permanent* ☒ Short Term Operation Description ☒ Permanent ☐ Short Term Parts List & Placement/BOM ☐ Permanent ☐ Short Term Tune-Up Procedure ☐ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☒ Short Term User’s Manual ☐ Permanent* ☒ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Printed name: Leo Qin Title: Manager Company Name: Shenzhen Romoss Technology Co., Ltd. Address: Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Phone: 13691887725 E-Mail: [email protected] Date: 2024-08-27

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Page1 of 4 DongguanFANYAElectronicsCo.,LTD 东莞市泛亚电子有限公司TEL：0769-22490287FAX：0769-22499451FY-GZ001 承認書 SPECIFICATIONFORAPPROVAL 客戶： CUSTOMER: 790 客戶料號： CUSTP/N: 泛亞料號： FINEP/N: FYD790003 産品型號： DESC: FYD79012023123001L 日期： DATE: 2023/12/30 版本： Version: A.0 擬制 PREPAREDBY 審核 CHECKEDBY 批准 APPROVEDBY 客戶承認 CUSTOMERAPPROVE 黄筱袁蔡纪雨丁保元 东莞市泛亚电子有限公司 DongguanFANYAElectronicsCo.,LTD 公司地址：东莞市石碣镇刘屋科技东路194号 TEL：0769-22490287/22452492 FAX：0769-22499451 E-mail：[email protected] Page2 of 4 DongguanFANYAElectronicsCo.,LTD 东莞市泛亚电子有限公司TEL：0769-22490287FAX：0769-22499451FY-GZ001 版本變更履歷 VersionChangeHistory 版本 Rev. 變更前 BeforeChange 變更後 AfterChange 更改日期 ChangeDate 批准 ApprovedBy A.0 新发行 ----2023/12/30 丁保元 Page3 of 4 DongguanFANYAElectronicsCo.,LTD 东莞市泛亚电子有限公司TEL：0769-22490287FAX：0769-22499451FY-GZ001 SPECIFICATION 産品型號： DESC FYD79012023123001L 版本 Rev：A.0 客戶CUST: 790 泛亚料号FineP/N： FYD790003 客户料号CUSTP/N: 一、尺寸DIMENSION:(mm) 二、原理图SCHEMATICDIAGRAM: A13.5±0.5 B38±1 C0.6Max D35±2 E1-4 F43.5±0.5 G10±0.5 H （不含出线及离型纸厚度 1.6Max ） 注： 1.线圈交叉出线； 2.线圈出线位置贴8mm宽高 温胶纸1.5Ts； 3.线圈贴磁片，尺寸φ 43.5*10*0.75mm开孔开L双 线槽；磁片一面黑膜一面贴 φ42*9*0.08带手撕位普通 双面背胶；线圈贴黑膜面； 4.线圈贴合用峙鸿SH8536 结构胶； 三、绕线参数WindingSpecification: 序号 NO. 端子 TERMINAL 线径 WIRE 圈数 Turns 绕线方向 WindingDirection 1SFLitz0.08*24P*2P12TsCCW 四、电气特性ELECTRICALCHARACTERISTICS: 温度TEMPERATURE:25±10°C,湿度RELATIVEHUMIDITY:65±20% 序号 NO. 项目 ITEM 端子 TERMINAL 标准 SPECIFICATION 测试条件 TESTFREQUENCY 测试仪器 TESTEQUIPMENTS 1 IND.S-F6.5uH±10%100KHz/1.0V TH2829LX 2DCRS-F 98mΩMax@25°CTH2829LX 擬制 / 日期 PREPAREDBY/DATE 審核 / 日期 CHECKEDBY/DATE 批准 / 日期 APPROVEDBY/DATE 黄筱袁2023/12/30蔡纪雨2023/12/30丁保元2023/12/30 Page4 of 4 DongguanFANYAElectronicsCo.,LTD 东莞市泛亚电子有限公司TEL：0769-22490287FAX：0769-22499451FY-GZ001 SPECIFICATION 産品型號： DESC FYD79012023123001L 版本 Rev：A.0 客戶CUST: 790 泛亚料号FineP/N： FYD790003 客户料号CUSTP/N: 六、包装PACKING: 6.1包装图片Packingpictures: 6.2包装数量及规格PackingQuantity: 6.3包装以现有包装盘为参照标准，以实际出货包装为准,如有特需要求可以定制。 Thepackagingshallbebasedontheexistingpackingplateandtheactualdeliverypackageshallprevail.If thereisanyrequirement,wecancustomizeit. 七、材料清单Materiallist: 序号 number 材料名称 Materialname 品名描述 Description 制造商 Manufacturer 1 Litz0.08*24PLitz0.08*24P 2无铅锡条无铅锡条 3磁片φ43.5*10*0.75mm开孔开L双线槽，单面黑膜 4普通背胶φ42*9*0.08带手撕位普通双面背胶 5结构胶峙鸿SH8536结构胶 项目Item数量Quantity材料规格Material 盘Reel200Pcs370*265*55mm 箱BigCarton1000Pcs420*270*310mm 擬制 / 日期 PREPAREDBY/DATE 審核 / 日期 CHECKEDBY/DATE 批准 / 日期 APPROVEDBY/DATE 黄筱袁 2023/12/30 蔡纪雨2023/12/30丁保元2023/12/30

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 1 of 14 RF EXPOSURE REPORT Applicant : Shenzhen Romoss Technology Co.,Ltd Address of Applicant : Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Manufacturer : Jiangmen Romoss Technology Co., Ltd. Address of Manufacturer : Room 01-2, First floor, Building 8, No. 80, Renhe Road, Tangxia Town, Pengjiang District, Jiangmen City Equipment under Test : Fast Charging Power Bank Model No. : WMO10C-221 FCC ID : 2A6QM-WMO10C-221 Test Standard(s) : FCC CFR 47 part1, 1.1307(b), 1.1310; KDB680106 DR03-44118 Report No. : DDT-RE24080636-2E04 Issue Date : 2024/08/22 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 2 of 14 Table of Contents 1. General Test Information .............................................................................................. 5 1.1. Description of EUT ........................................................................................................ 5 1.2. Accessories of EUT ...................................................................................................... 5 1.3. Test laboratory .............................................................................................................. 5 2. RF Exposure evaluation for FCC.................................................................................. 6 2.1. Test equipment ............................................................................................................. 6 2.2. Block diagram of test setup .......................................................................................... 6 2.3. Limits ............................................................................................................................. 6 2.4. Assistant equipment used for test ................................................................................ 7 2.5. Test procedure .............................................................................................................. 7 2.6. Test result ..................................................................................................................... 9 3. Test Setup Photograph ............................................................................................... 13 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 Page 3 of 14 Test Report Declare Applicant : Shenzhen Romoss Technology Co.,Ltd Address of Applicant : Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Equipment under Test : Fast Charging Power Bank Model No. : WMO10C-221 Manufacturer : Jiangmen Romoss Technology Co., Ltd. Address of Manufacturer : Room 01-2, First floor, Building 8, No. 80, Renhe Road, Tangxia Town, Pengjiang District, Jiangmen City Test Standard Used: FCC CFR 47 part1, 1.1307(b), 1.1310; KDB680106 DR03-44118 We Declare: The equipment described above is tested by Guangdong Dongdian Testing Service Co., Ltd. and in the configuration tested the equipment complied with the standards specified above. The test results are contained in this test report and Guangdong Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these tests. Report No.: DDT-RE24080636-2E04 Date of Receipt: 2024/08/09 Date of Test: 2024/08/09 - 2024/08/22 Prepared By: Approved By: _____________________ ______________________ Johnson Huang/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Guangdong Dongdian Testing Service Co., Ltd. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 Page 4 of 14 Revision History Rev. Revisions Issue Date Revised By --- Initial issue 2024/08/22 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 Page 5 of 14 1. General Test Information 1.1. Description of EUT EUT Name : Fast Charging Power Bank Model Number : WMO10C-221 EUT Function Description : Please reference user manual of this device Power Supply : 5V⎓3A/9V⎓3A/12V⎓2.5A/9V⎓3A/15V⎓2A from USB cable or DC 7.4V built-in battery Wireless charging Operation frequency : 115-205 kHz Antenna Type : Inductive loop coil antenna Note: The above EUT information is declared by manufacturer and for more detailed features description please refer to the manufacturer's specifications or User's Manual. The above Antenna information is declared by manufacturer and for more detailed features description please refer to the manufacturer's specifications, the laboratory shall not be held responsible. “☒” means to be chosen or applicable; “☐” means don’t to be chosen or not applicable; This note applies to entire report. 1.2. Accessories of EUT Accessories Manufacturer Model number Description / / / / 1.3. Test laboratory Guangdong Dongdian Testing Service Co., Ltd. Add.: Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808. Tel.: +86-0769-38826678, http://www.dgddt.com, Email: [email protected]. CNAS Accreditation No. L6451; A2LA Accreditation Number: 3870.01 FCC Designation Number: CN1182, Test Firm Registration Number: 540522 Innovation, Science and Economic Development Canada Site Registration Number: 10288A Conformity Assessment Body identifier: CN0048 VCCI facility registration number: C-20087, T-20088, R-20123, R-20155, G-20118 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 Page 6 of 14 2. RF Exposure evaluation for FCC 2.1. Test equipment Equipment Manufacturer Model No. Serial No. Cal Due To ELECTRIC AN…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 Page 12 of 13 3. Test Setup Photograph A Side (0cm) B Side (0cm) C Side (0cm) D Side (0cm) E Side (0cm) F Side (0cm) F Side (2cm) worse mode Side (4cm) worse mode F Side (6cm) worse mode F Side (8cm) worse mode F Side (10cm) worse mode F Side (20cm) worse mode Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E04 Page 13 of 13 -----------------------End Report----------------------

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E03 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 1 of 47 FCC CERTIFICATION TEST REPORT Applicant : Shenzhen Romoss Technology Co.,Ltd Address of Applicant : Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Manufacturer : Jiangmen Romoss Technology Co., Ltd. Address of Manufacturer : Room 01-2, First floor, Building 8, No. 80, Renhe Road, Tangxia Town, Pengjiang District, Jiangmen City Equipment under Test : Fast Charging Power Bank Model No. : WMO10C-221 FCC ID : 2A6QM-WMO10C-221 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10:2013 Report No. : DDT-RE24080636-2E03 Issue Date : 2024/08/22 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E03 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 2 of 47 Table of Contents 1. Summary of Test Results ............................................................................................. 5 2. General Test Information .............................................................................................. 6 2.1. Description of EUT ........................................................................................................ 6 2.2. Accessories of EUT ...................................................................................................... 6 2.3. Block diagram of EUT configuration for test ................................................................. 6 2.4. Decision of final test mode ........................................................................................... 6 2.5. Deviations of test standard ........................................................................................... 6 2.6. Test environment conditions ......................................................................................... 6 2.7. Test laboratory .............................................................................................................. 7 2.8. Measurement uncertainty ............................................................................................. 8 3 Equipment Used During Test ....................................................................................... 9 4 20 dB Bandwidth ......................................................................................................... 10 4.1. Block diagram of test setup ........................................................................................ 10 4.2. Limits ........................................................................................................................... 10 4.3. Test procedure ............................................................................................................ 10 4.4. Test result ................................................................................................................... 10 4.1. Original test data ......................................................................................................... 11 5. Radiated Emission ...................................................................................................... 12 5.1. Test equipment ........................................................................................................... 12 5.2. Block diagram of test setup ........................................................................................ 13 5.3. Limits ........................................................................................................................... 13 5.4. Assistant equipment used for test .............................................................................. 14 5.5. Test procedure ............................................................................................................ 14 5.6. Test result ................................................................................................................... 15 5.7. Test data ..................................................................................................................... 16 6. Power Line Conducted Emissions .............................................................................. 41 6.1. Test equipment ........................................................................................................... 41 6.2. Block diagram of test setup ........................................................................................ 41 6.3. Limits ........................................................................................................................... 41 6.4. Assistant equipment used for test .............................................................................. 41 6.5. Test procedure ............................................................................................................ 42 6.6. Test result ................................................................................................................... 42 6.7. Test data ..................................................................................................................... 43 7. Test Setup Photograph ............................................................................................... 45 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24080636-2E03 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 3 of 47 Test Report Declare Applicant : Shenzhen Romoss Technology Co.,Ltd Address of Applicant : Room 1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Nanshan, Shenzhen, Guangdong, P.R.China Equipment under Test : Fast Charging Power Bank Model No. : WMO10C-221 Manufacturer : Jiangmen Romoss Technology Co., Ltd. Address of Manufacturer : Room 01-2, First floor, Building 8, No. 80, Renhe Roa…

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