2BWKH-POWERSHELLCharging Case

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Shenzhen Hongcaiyuan Technology Co., Ltd. Grantee code: 2BWKH FCC ID: 2BWKH-POWERSHELL FRN: 0038460457 Contact Name: duozhan Niu Address: Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Telephone No: 18666228592 Fax No: Email: [email protected] i. ii. [Shenzhen Hongcaiyuan 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. The applicant must sign this certification. [Shenzhen Hongcaiyuan Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment.The applicant must sign this certification. [Shenzhen Hongcaiyuan Technology Co., Ltd.] (“the applicant”) certifies that, as of t he date of the filing of the application, the applicant [is not] identified on the Cove red List as an entity producing “covered”equipment . Date: 2026/05/9 Applicant’s Name: duozhan Niu Title: project Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Shenzhen Hongcaiyuan Technology Co., Ltd. Code 00018768 Ed. 1 Item 1. The device is able to install software/program installation? ☐ Yes, go to Item 2. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Item 2. Technical Requirements for Kaspersky Cybersecurity Software: # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) N/A # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A Device Charging Case Company name Shenzhen Hongcaiyuan Technology Co., Ltd. Grantee code 2BWKH FCC ID 2BWKH-POWERSHELL FRN 0038460457 Contact name duozhan Niu Address Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Telephone number 18666228592 E-mail [email protected] Chipset/module information IP5561 Operating System (if applicable) N/A Storage Capacity (hard drive or other permanent memory storage, if applicable) N/A 2 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: Android™ 10 – 14 N/A 3 Screen Resolution: Minimum resolution of 320 x 480 N/A # General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: iOS® 17 N/A # General Requirements (For Linux system) Yes / No or N/A Comments 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher 3 3 RAM: 1 GB 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ; After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? ☐ Yes, go to Item 3. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software Item 3. Connectivity Capabilities: # Physical Interface Purpose Justification 1 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications. 4 1 # Wireless Interface Purpose Justification 1 1 After the review of this items, the device: ☐ Cannot support installation of any cybersecurity or anti-virus software on the covered list. ☐ Potentially can operate with any cybersecurity or anti-virus software on the covered list – additional third- party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – “Proof of Compliance with Covered List Software Requirements” of this document applies Signature: Name: duozhan Niu Date:2026/06/15

TCBCALLpágina1 FileFCCID:2BWKH-POWERSHELL PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:https://apps.dos.ny.gov/publicInquiry/EntityDisplay Google: TCBCALLpágina2 StateofNewYorkdepartmentofState: TCBCALLpágina3 TCBCALLpágina4 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"C5266091_X23_Ed1_US_Agent_Letter" includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"C5266091_X23_Ed1_US_Agent_Letter"

C5266091_X10_Ed.2 1/1 Shenzhen Hongcaiyuan Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026-06-15 Subject: Request for Confidentiality FCC ID: 2BWKH-POWERSHELL To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. 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 NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ___180___ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: duozhan Niu Title: project Manager

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Shenzhen Hongcaiyuan Technology Co., Ltd. Address: Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Product Name: Charging Case Model Number: Power Shell Air FCC Identifier: 2BWKH-POWERSHELL We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: duozhan Niu Date: 2026-06-15 Title: project Manager Signature of applicant:

MPE REPORT Charging Case MODEL No.: Power Shell Air FCC ID:2BWKH-POWERSHELL REPORT NO.:NCT26021778E1-2 ISSUE DATE:Jun. 04, 2026 Prepared for Shenzhen Hongcaiyuan Technology Co., Ltd. Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 Report No.: NCT26021778E1-2 Page 2 of 18 Hotline: 400-8868-419 http://www.ncttesting.cn TABLE OF CONTENT 1. SUMMARY OF TEST RESULT.................................................................................................. 4 2. GENERAL INFORMATION ....................................................................................................... 5 2.1. DESCRIPTION OF DEVICE (EUT) ............................................................................................................................... 5 2.2. TEST SETUP .............................................................................................................................................................. 6 2.3. DESCRIPTION OF TEST FACILITY .............................................................................................................................. 7 2.4. MEASUREMENT UNCERTAINTY ................................................................................................................................ 7 3. MEASURING DEVICE AND TEST EQUIPMENT .................................................................. 8 3.1. FOR MPE MEASUREMENT ........................................................................................................................................ 8 4. RF EXPOSURE ............................................................................................................................. 9 4.1. MEASURING STANDARD ........................................................................................................................................... 9 4.2. REQUIMENTS ............................................................................................................................................................ 9 4.3. TEST CONFIGURATION ............................................................................................................................................ 10 4.4. LIMITS .................................................................................................................................................................... 11 4.5. TEST MODES: ......................................................................................................................................................... 12 4.6. DESCRIPTION OF SUPPORT UNIT ............................................................................................................................. 12 4.7. MEASURING RESULTS ............................................................................................................................................ 12 5. PHOTOGRAPHS OF TEST SETUP ......................................................................................... 18 Report No.: NCT26021778E1-2 Page 3 of 18 Hotline: 400-8868-419 http://www.ncttesting.cn TEST REPORT DESCRIPTION Applicant : Shenzhen Hongcaiyuan Technology Co., Ltd. Address : Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Manufacturer : Shenzhen Hongcaiyuan Technology Co., Ltd. Address : Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China EUT : Charging Case Model Name : Power Shell Air Trademark : N/A Measurement Procedure Used: FCC Part 1(1.1310) and Part 2(2.1093) KDB 680106 D01 Wireless Power Transfer v04 The device described above is tested by Shenzhen NCT Testing Technology Co., Ltd. to determine the maximum emission levels emanating from the device and the severe levels of the device can endure and its performance criterion. The measurement results are contained in this test report and Shenzhen NCT Testing Technology Co., Ltd. is assumed full of responsibility for the accuracy and completeness of these measurements. Also, this report shows that the EUT (Equipment Under Test) is technically compliant with the FCC requirements. This report applies to above tested sample only and shall not be reproduced in part without written approval of Shenzhen NCT Testing Technology Co., Ltd. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager Report No.: NCT26021778E1-2 Page 4 of 18 Hotline: 400-8868-419 http://www.ncttesting.cn 1.SUMMARY OF TEST RESULT EMISSION Description of Test Item Standard & Limits Results MPE FCC Part 1(1.1310) and Part 2(2.1093) KDB 680106 D01 Wireless Power Transfer v04 Pass Note: N/A is an abbreviation for Not Applicable. Report No.: NCT26021778E1-2 Page 5 of 18 Hotline: 400-8868-419 http://www.ncttesting.cn 2.GENERAL INFORMATION 2.1.Description of Device (EUT) EUT : Charging Case Model Number : Power Shell Air Difference : N/A Power Rating : Battery Rated Capacity: 3200mAh / 3.85V / 12.32Wh USB-C Input: 5V/2A, 9V/1.11A USB-C Output: 5V/2.4A, 9V/1.33A Wireless Output: 7.5W Max Operation Frequency for WPT : 111-205 KHz Modulation : ASK/FSK Antenna Type: : Coil Antenna Date of Received : May 21, 2026 Date of Test : May 25, 2026 to Jun. 04, 2026 Report No.: NCT26021778E1-2 Page 6 of 18 Hotline: 400-8868-419 http://www.ncttesting.cn 2.2.Test Setup For mobile exposure conditions: For portable exposure conditions: Notes: The EHP 200A Probe has a diameter of 10.9cm and a radius of 5.45cm Report No.: NCT26021778E1-2 Page 7 of 18 Hotline: 400-8868-419 http://www.ncttesting.cn 2.3.Description of Test Facility 2.4.Measurement Uncertainty Parameter Uncertainty Temperature ±1°C Humidity ±5% DC …

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FCC PART 15 SUBPART C Charging Case MODEL No.: Power Shell Air FCC ID:2BWKH-POWERSHELL REPORT NO.:NCT26021778E1-1 ISSUE DATE:Jun. 04, 2026 Prepared for Shenzhen Hongcaiyuan Technology Co., Ltd. Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 Report No.: NCT26021778E1-1 Page 2 of 23 Hotline: 400-8868-419 http://www.ncttesting.cn TABLE OF CONTENT Test Report Description Page 1. SUMMARY OF TEST RESULTS ............................................................................................................................. 5 2. GENERAL INFORMATION ...................................................................................................................................... 6 2.1. Description of Device (EUT) .............................................................................................................................. 6 2.2. Description of Support Units .............................................................................................................................. 6 2.3. Independent Operation Modes .......................................................................................................................... 7 2.4. Test Mode .......................................................................................................................................................... 7 2.5. Description of Test Facility ................................................................................................................................. 7 2.6. Measurement Uncertainty .................................................................................................................................. 8 3. MEASURING DEVICE AND TEST EQUIPMENT .................................................................................................... 9 4. 20DB BANDWIDTH ............................................................................................................................................... 11 4.1. Test Procedure ................................................................................................................................................ 11 4.2. Test Results ..................................................................................................................................................... 11 5. POWER LINE CONDUCTED EMISSION MEASUREMENT ................................................................................. 12 5.1. Block Diagram of Test Setup ........................................................................................................................... 12 5.2. Limits ................................................................................................................................................................ 12 5.3. Test Procedure ................................................................................................................................................ 12 5.4. Measuring Results ........................................................................................................................................... 13 6. RADIATED EMISSION TEST ................................................................................................................................ 16 6.1. Measurement Procedure ................................................................................................................................. 16 6.2. Test SET-UP (Block Diagram of Configuration) .............................................................................................. 16 6.3. Radiated Emission Limit .................................................................................................................................. 17 6.4. Measurement Result ........................................................................................................................................ 19 7. TEST PHOTOGRAPHS AND EUT PHOTOGRAPHS ........................................................................................... 23 Report No.: NCT26021778E1-1 Page 3 of 23 Hotline: 400-8868-419 http://www.ncttesting.cn TEST REPORT DESCRIPTION Applicant : Shenzhen Hongcaiyuan Technology Co., Ltd. Address : Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China Manufacturer : Shenzhen Hongcaiyuan Technology Co., Ltd. Address : Room 214, Building C, Liantangkeng Industrial Zone, Fenghuanggang Community, Xixiang Subdistrict, Bao'an District, Shenzhen City, China EUT : Charging Case Model Name : Power Shell Air Trademark : N/A Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by Shenzhen NCT Testing Technology Co., Ltd.The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2020+Cor 1+2023 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15C The test results of this report relate only to the tested sample identified in this report. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager Report No.: NCT26021778E1-1 Page 4 of 23 Hotline: 400-8868-419 http://www.ncttesting.cn Modified Information Version Report No. Revision Data Summary Ver.1.0 NCT26021778E1-1 Jun. 04, 2026 Original Version Report No.: NCT26021778E1-1 Page 5 of 23 Hotline: 400-8868-419 http://www.ncttesting.cn 1. SUMMARY OF TEST RESULTS Test Item Section in CFR 47Result Antenna requirement 15.203Pass AC Power Line Conducted Em…

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Product Acknowledgement Spec No. HG2026051301 Effective date Customer Name Shenzhen Yitianyuan Electronic Technology Co., Ltd. Product type Soft magnetic A11 coil L = 82MM Material No. 43.5 * 0.3 Slotted with holes without adhesive backing Compiling Audit Approval 彭建基 安福宏贵电子有限公司 Anfu Honggui Electronics Co., Ltd. 江西省吉安市安福县洲湖镇杨梅岭新能源产业园2#楼 build 2,Yangmeiling New Energy Industrial Park, Zhouhu Town, Anfu County, Ji'an City, Jiangxi Province 彭建基：13907060771 Date: 【 Customer Approval】 Approval AuditRetest Check 说明 : Customer Name Shenzhen Yitianyuan Electronic Technology Co., Ltd. Material No. 43.5 * 0.3 Slotted with holes without adhesive backing Spec No. HG2026051301 Ver. (Unit: mm) A43.5 ± 0.5 B39.0 ±1.5 C 20.5 ±0.5 D1.2 ±0.2 E82 ±2.0 F3 ±1 G 5.3 ( 1)Wire diameter: 0.08 * 24 * 2P hot air self-adhesive copper wire (2)number of coils wound:10TS (3)Does the starting and ending lines cross: Yes (4)Coil wrapped 7mm wide high temperature tape (5)The coil and the magnetic disk need to be pasted in the center parameter Spec. test condition instrument L0 6.5 ±0.3μH 100KHz/ 1V ■TH1816B ■TH1816B ■CH-502BC Q >30min100KHz/ 1V DCR <100mΩ @ 25°C temperature -40°C~ 125°C ♦ 、Materials: serial No. 1 Name material spec SuppliersRemarks 2 magnetic disk 43.5*0.3 开槽带孔 soft magnetic field 3 copper wire 0.08*24*2P Hot air self-adhesive copper wire 4 high temp tape 7MM Eco-friendly tape 5 tin High temp tin bar QIAN DAO Eco-friendly tin 6 adhesive backing 7 Compiling AuditApproval 彭建基