2A6QM-RM300Portable Power Station

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: Portable Power Station Grantee code: 2A6QM FCC ID: 2A6QM-RM300 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 Agent, LLC] accepts, as of the date of the filing of the application, the 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: 2024-04-19 Applicant’s Name: Leo Qin US Agent’s Name: Tim Payne Title: Manager Title: Manager Signature： Signature

Shenzhen Romoss Technology Co., Ltd. Covered Equipment Certification Attestation Letter 2024-04-19 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:2A6QM-RM300 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: Room1601, BLOCK B, Building 7,Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, Nanshan , Shenzhen，Guangdong, P.R.China Phone: 13691887725 E-Mail: [email protected] Date: 2024-04-18

Shenzhen Romoss Technology Co., Ltd. 2024-04-19 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: Room1601, BLOCK B, Building 7,Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, Nanshan , Shenzhen，Guangdong, P.R.China Phone: 13691887725 E-Mail: [email protected] Date: 2024-04-18

Shenzhen Romoss Technology Co., Ltd. 2024-04-19 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: 2A6QM-RM300 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: Room1601, BLOCK B, Building 7,Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, Nanshan , Shenzhen，Guangdong, P.R.China Phone: 13691887725 E-Mail: [email protected] Date: 2024-04-19

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24032913-2E02 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 1 of 13 RF EXPOSURE REPORT Applicant : Shenzhen Romoss Technology Co., Ltd. Address of Applicant : Room1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, 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 : Portable Power Station Model No. : RM300 FCC ID : 2A6QM-RM300 Test Standard(s) : FCC CFR 47 part1, 1.1307(b), 1.1310; KDB680106 DR03-44118 Report No. : DDT-RE24032913-2E02 Issue Date : 2024/04/19 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-RE24032913-2E02 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 2 of 13 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 ............................................................................................. 10 4. Photos of the EUT ..................................................................................................... 13 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24032913-2E02 Page 3 of 13 Test Report Declare Applicant : Shenzhen Romoss Technology Co., Ltd. Address of Applicant : Room1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, Nanshan, Shenzhen, Guangdong, P.R.China Equipment under Test : Portable Power Station Model No. : RM300 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-RE24032913-2E02 Date of Receipt: 2024/04/01 Date of Test: 2024/04/01~2024/04/18 Prepared By: Approved By: _____________________ ______________________ Bobo Chen/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-RE24032913-2E02 Page 4 of 13 Revision History Rev. Revisions Issue Date Revised By --- Initial issue 2024/04/19 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24032913-2E02 Page 5 of 13 1. General Test Information 1.1. Description of EUT EUT Name : Portable Power Station Model Number : RM300 EUT Function Description : Please reference user manual of this device Power Supply : Type-C Input/Output(x1): DC 5V/3A, DC 9V/3A, DC 12V/3A, DC 15V/3A, DC 20V/3A (60W Max) USB-A Output(x2): DC 5V/3A, DC 9V/2A, DC 12V/1.5A (Dual-Port:36W Max) AC Input: AC 110-130V, 50Hz/60Hz 4A Max DC Input(XT60): DC 12-30V/8A(100W Max) AC Output(x1): AC 110-130V, 50Hz/60Hz 2.73A(Total:300W) Car Charger Output(x1): DC 12V/10A(120W Max) Wireless Charging Output: 15W Wireless charging Operation frequency : 110.5-205 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 AC cable N/A N/A Length: 1 m Car Charger cable N/A N/A Length: 1 m 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 A…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24032913-2E01 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 1 of 31 FCC CERTIFICATION TEST REPORT Applicant : Shenzhen Romoss Technology Co., Ltd. Address of Applicant : Room1601, BLOCK B, Building 7, Shenzhen International Innovation Valley, Dashi 1st Road Xili community, Xili Street, 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 : Portable Power Station Model No. : RM300 FCC ID : 2A6QM-RM300 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10:2013 Report No. : DDT-RE24032913-2E01 Issue Date : 2024/04/19 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-RE24032913-2E01 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 2 of 31 Table of Contents 1. Summary of Test Results ............................................................................................. 6 2. General Test Information .............................................................................................. 7 2.1. Description of EUT ........................................................................................................ 7 2.2. Accessories of EUT ...................................................................................................... 7 2.3. Block diagram of EUT configuration for test ................................................................. 7 2.4. Decision of final test mode ........................................................................................... 7 2.5. Deviations of test standard ........................................................................................... 8 2.6. Test environment conditions ......................................................................................... 8 2.7. Test laboratory .............................................................................................................. 8 2.8. Measurement uncertainty ............................................................................................. 9 3. 20 dB Bandwidth ......................................................................................................... 10 3.1. Test equipment ........................................................................................................... 10 3.2. Block diagram of test setup ........................................................................................ 10 3.3. Limits ........................................................................................................................... 10 3.4. Assistant equipment used for test .............................................................................. 10 3.5. Test procedure ............................................................................................................ 10 3.6. Test result ................................................................................................................... 11 3.7. Test data ..................................................................................................................... 11 4. Radiated Emission ...................................................................................................... 12 4.1. Test equipment ........................................................................................................... 12 4.2. Block diagram of test setup ........................................................................................ 13 4.3. Limits ........................................................................................................................... 13 4.4. Assistant equipment used for test .............................................................................. 14 4.5. Test procedure ............................................................................................................ 14 4.6. Test result ................................................................................................................... 15 4.7. Test data ..................................................................................................................... 16 5. Antenna Requirement ................................................................................................. 24 5.1. Limits ........................................................................................................................... 24 5.2. Assess result ............................................................................................................... 24 6. Power Line Conducted Emissions .............................................................................. 25 6.1. Test equipment ........................................................................................................... 25 6.2. Block diagram of test setup ........................................................................................ 25 6.3. Limits ........................................................................................................................... 25 6.4. Assistant equipment used for test .............................................................................. 25 6.5. Test procedure ............................................................................................................ 25 6.6. Test result ................................................................................................................... 26 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24032913-2E01 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 3 of 31 6.7. Test data ....................................................................................…

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产品规格书 Product Specification 型号Model H08501 版本Ver.A/0 页数Page3/3 客户编号 Customer Code H085 品 名 Product Name 发射线圈 产品规格 Specification 20.5*39.5*0.08*80*10TS+G43.5+引线20 绕线方向 Winding Direction CCW 一. 产品尺寸说明 Product Size(单位：MM)二.原理图SCHEMATIC 项目 Items 尺寸 Size 公 差 Tol. A20.50 ±0.5 B39.50 ±1 C43.50 ±0.5 D20.00 ±1.5 E2～5±1.5 F2.50 MAX 三. 绕线参数 Winding Specification: 线圈绕线方式 Wdg Type 出线 Wire 线径Wire OD 圈数 Turns 层数 Layer CCW120.08*80P漆包线101 四. 电性规格 性能 Properties 测试条件 Test conditions 数值Value unit 单位 TOL 公差 LS100KHZ/1V6.3 μH 10% DCR25°C60.0 m Ω MAX 四. 物料清单Material list NO.物料清单/Material List规格/Spec. 1漆包线0.08*80 2铁氧体隔磁片（双槽）单孔43.5*5.3*0.8 3双面背胶（带手撕位）42*7.0 4高温锡环保高温锡 东莞浩正电子有限公司 Dong Guan Honour Electronic Co.,Ltd. 产品种类 Product type 无线充线圈 Wireless Charging coil F2 Building 1, No. 182 Xi'an Road, Chang'an Town, Dongguan,GuanDong 版 本 Ver. A 文件编号 Document Code：HN-PE-007 Only radiated measurements are used to show compliance with FCC limits for fundamental and spurious emissions. And the antenna gain information is not required