2BTD7-SSA5K-S2W15SLIM II Wireless2.0 SS5K

Rev 1/26/2023 CIO Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2025/12/22 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BTD7-SSA5K-S2W15 Applicant FRN: 0037689676 [CIO Co.,Ltd.] certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced FCC ID. [CIO 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 the equipment. [FCC US Agent, LLC] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, [CIO Co.,Ltd.] FCC US Agent, LLC [Shigeru Miyajima] Tim Payne

(CIO Co.,Ltd.) (2025/12/22) 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: 2BTD7-SSA5K-S2W15) [CIO 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) Shigeru Miyajima (CIO Co.,Ltd.) (2025/12/22) 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: 2BTD7-SSA5K-S2W15) [CIO 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) Shigeru Miyajima

CIO Co.,Ltd. 2025/12/22 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen STS Test Services 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, Client’s signature: Client’s name / title : Shigeru Miyajima / Product Planning Department Manager Contact information / address: 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan

CIO Co.,Ltd. 2025/12/22 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: SLIM II Wireless2.0 SS5K Trademark: CIO MODEL: CIO-MB20W1C-SSA5K-S2W15 FCC ID: 2BTD7-SSA5K-S2W15 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 - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Shigeru Miyajima / Product Planning Department Manager Contact information / address: 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan

Page 1 of 8 FCC ID: 2BTD7-SSA5K-S2W15 External Photos Page 2 of 8 FCC ID: 2BTD7-SSA5K-S2W15 Page 3 of 8 FCC ID: 2BTD7-SSA5K-S2W15 Page 4 of 8 FCC ID: 2BTD7-SSA5K-S2W15 Page 5 of 8 FCC ID: 2BTD7-SSA5K-S2W15

Label& Location

Page 6 of 8 FCC ID: 2BTD7-SSA5K-S2W15 Internal Photos Antenna Page 7 of 8 FCC ID: 2BTD7-SSA5K-S2W15 Page 8 of 8 FCC ID: 2BTD7-SSA5K-S2W15

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. MPE Test Report Report No.:STS2512332H01 Issued for CIO Co.,Ltd. 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan Product Name: SLIM II Wireless2.0 SS5K Brand Name: CIO Model Name: CIO-MB20W1C-SSA5K-S2W15 Series Model(s): N/A FCC ID: 2BTD7-SSA5K-S2W15 Test Standard: FCC CFR 47 part 1, 1.1310 Page 2 of 19 Report No.: STS2512332H01 TEST RESULT CERTIFICATION Applicant’s Name ................... : CIO Co.,Ltd. Address ................................. : 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan Manufacturer's Name ............. : CIO Co.,Ltd. Address ................................. : 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan Product Description Product Name ........................ : SLIM II Wireless2.0 SS5K Brand Name ........................... : CIO Model Name ........................ : CIO-MB20W1C-SSA5K-S2W15 Series Model(s) ...................... : N/A Standards .............................. : FCC CFR 47 part 1, 1.1310 Test Procedure ..................... : KDB 680106 D01 Wireless Power Transfer v04 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ............................ : Date of receipt of test item ..... : 13 Dec. 2025 Date of performance of tests .. : 13 Dec. 2025 to 16 Dec. 2025 Date of Issue .......................... : 16 Dec. 2025 Test Result ............................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 19 Report No.: STS2512332H01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 5 1.2 MEASUREMENT UNCERTAINTY 5 1.3 GENERAL DESCRIPTION OF THE EUT 6 1.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 7 1.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 7 2. COIL SPECIFICATIONS 8 2.1 COIL SIZE 8 2.2 LOCATION(S) – COIL TO THE OUTER SURFACE OF THE ENCLOSURE(S) 8 3. MAXIMUM PERMISSIBLE EXPOSURE 9 3.1MEASURING STANDARD 9 3.2 REQUIREMENTS 9 3.3TEST PROCEDURE 11 3.4 TEST SETUP 11 3.5 TEST RESULTS 12 3.6 MAXIMUM PERMISSIBLE EXPOSURE 14 Page 4 of 19 Report No.: STS2512332H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 16 Dec. 2025 STS2512332H01 ALL Initial Issue Page 5 of 19 Report No.: STS2512332H01 1. SUMMARY OF TEST RESULTS 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainly 1 H-filed ±0.83dB 2 E-filed ±0.91dB Page 6 of 19 Report No.: STS2512332H01 1.3 GENERAL DESCRIPTION OF THE EUT Product Name SLIM II Wireless2.0 SS5K Brand CIO Model Number CIO-MB20W1C-SSA5K-S2W15 Series Model(s) N/A Model Difference N/A Equipemnt Category Non-ISM frequency Antenna Type loop coil antenna Operating frequency 115kHz-205kHz; 360kHz Modulation Type ASK Power Rating USB-C Input: DC 5V/3A, DC 9V/2.22A USB-C Output: DC 5V/2A, DC 9V/2.22A Wireless Output:15W Max USB-C+Wireless Charging Output: 5W+5W 10W Max Adapter N/A Battery DC 3.92V Wireless charging power 15W Max Hardware version number N/A Software version number N/A Connecting I/O Port(s) Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. 2. Table for Filed Antenna Ant. Brand Model Name Antenna Type Connector NOTE 1 N/A N/A Coil N/A Antenna The EUT antenna is Coil Antenna. No antenna other than that furnished by the responsible party shall be used with the device. Page 7 of 19 Report No.: STS2512332H01 1.4 DESCRIPTION OF THE TEST MODES Equipment under test was operated during the measurement under the following conditions: Test Mode Description Mode 1 AC Adapter + EUT + Load(5W, 115-205kHz) (Battery Status: < 1%) Record Mode 2 AC Adapter + EUT + Load(5W, 115-205kHz) (Battery Status: < 50%) Record Mode 3 AC Adapter + EUT + Load(5W, 115-205kHz) (Battery Status: < 99%) Record Mode 4 EUT + Load(5W, 115-205kHz) (Battery Status: < 1%) Record Mode 5 EUT + Load(5W, 115-205kHz) (Battery Status: < 50%) Pre-tested Mode 6 EUT + Load(5W, 115-205kHz) (Battery Status: < 99%) Pre-tested Mode 7 EUT + Load(15W, 360kHz) (Battery Status: < 1%) Record Mode 8 EUT + Load(15W, 360kHz) (Battery Status: < 50%) Pre-tested Mode 9 EUT + Load(15W, 360kHz) (Battery Status: < 99%) Pre-tested Mode 10 Test the EUT in idle mode. Pre-tested Note: All test modes were pre-tested, but we only recorded the worst case in this report. 1.5 EQUIPMENTS LIST FOR ALL TEST ITEMS Kind of Equipment Manufacturer Type No. Serial No. Last calibration Calibrated until Electric and Magnetic field Probe - Analyzer NARDA EHP-200A 180ZX10220 2025.02.22 2026.02.21 1.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS Item Equipment Mfr/Brand Model/Type No. Note E-1 Adapter ZTC NB-A515A N/A E-2 Load N/A N/A N/A Item Shielded Type Ferrite Core Length Note C-1 N/A N/A 0.8m N/A Note: (1) For detachable type I/O cable should be specified the length in cm in『Length』column. (2) “YES” is m…

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深圳市瑞通千业科技有限公司 Shenzhen Ruitong Qianye Technology Co., Ltd. 客户/Ciient东莞市卓熠创兴电子有限公司 名称/TYPEQ1 2-MPP无线充发射线圈 产品型号 Model NOG42.5*0.4单槽无孔正背胶反黑膜线长45MM/8.4UH 产品编号 Part nunberin g systey WZ -2554/05B5 客户料号 Cie nt p/NO 工程编号 Engin rer NO 日期 /Date2024 年 11 月 28 日 本公司工程部/Fo r Enginer Departner Only 修改内容 /Rrvis ed Cin tent 认可日期 /APProved Date 编制 /Prepared 审核 /Checked 认可 /Approved 万纪美万纪美刘成昭 客户认可回签 /Authorix ed Sig naturure Company Chop 工程/ Engin rer 卢加兵 认可/QC APProved 吴静 认可日期/APProved 2024/11/29 深圳市瑞通千业科技有限公司 一、线圈工艺/WindingProcese: NO 绕组线规匝数绕线方向备注 1N12UEW-B-0.08*56P11TSCCW 2 二．电气性能/FEATURES: 1.测试条件（Testconditions）：25°C,65%RH@100KHz/1V 1.1电感量（Inductance） 1.12L0A(线圈+磁片)=8.4uH±5% 1.2Q值=80MIN 1.3直流电阻（DCR）：60mΩMAX 1.4工作温度(OperatingTemperature)：-25°C~85°C 2.测试仪器(Testinstrument)：L:创达1068+1310;DCR:502BC;SIZE:Callipers 3.材料清单 N O 项目材料 1WIRE￠0.08*56p2UEW- 2FERRITE 42.5*5*0.4L型双槽有孔铁氧体硬磁 正背胶反黑膜 3GLUE 水性白胶 4SOLDERHQ-996/JS-996 5Tin千岛纯锡 6 High temperature adhesive 5MM高温胶带 7 8 深圳市瑞通千业科技有限公司 三．电路图/CIRCUITDIAGRAM 单位：MM 四．外形图 /OUTSIDEDIAGRA 注：线圈出线位置缠绕 5MM （ ref ）高温胶纸，磁片背面贴双面背胶。 标准ABCDEFG STD 42.5±0.539±0.520.5±0.3 无孔 45±23±11.7±0.3 单位：MM 深圳市瑞通千业科技有限公司 五．包装/PACKAGE 5.3包装以现有包装盘为参照标准，以实际出货包装为准，如有特殊要求可定制。 Thepackagingshallbebasedontheexustingpackingplateandtheactualdeliverypackage shallprevail.Ifthereisanyrequirement,wecancustomizeit. 深圳市瑞通千业科技有限公司 六、贮存和使用条件StorageandUsecondition 6.1贮存条件Storagecondition 6.1.1建议贮存条件：温度-25°C~85°C，湿度70%(Max.) Recommendedkeepingconditions:-25°C~85°C,70%RH(Max.) 6.1.2贮存期限：自生产之日起六个月内 Storagelife:Withinthelimitsofsixmonthsfrombeing produced. 6.2使用条件Usecondition 使用条件限制：温度=-25°C ~ 85°C,湿度≤90% Useconditionlimit:T=-25°C~85°C,RH≤90%.

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2512332W01 Issued for CIO Co.,Ltd. 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan Product Name: SLIM II Wireless2.0 SS5K Brand Name: CIO Model Name: CIO-MB20W1C-SSA5K-S2W15 Series Model(s): N/A FCC ID: 2BTD7-SSA5K-S2W15 Test Standards: FCC Part 15 Subpart C Page 2 of 25 Report No.: STS2512332W01 TEST REPORT Applicant’s Name ................... : CIO Co.,Ltd. Address ................................. : 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan Manufacturer's Name ............. : CIO Co.,Ltd. Address ................................. : 4F, Moriguchi CID Building, 2-5-18 Honmachi, Moriguchi-shi, Osaka 570-0028, Japan Product Description Product Name ........................ : SLIM II Wireless2.0 SS5K Brand ..................................... : CIO Model Number ....................... : CIO-MB20W1C-SSA5K-S2W15 Series Model(s)...................... : N/A Test Standards ..................... : FCC Part 15 Subpart C Test Procedure ...................... : ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ...............................: Date of receipt of test item ..........: 13 Dec. 2025 Date (s) of performance of tests .: 13 Dec. 2025 to 16 Dec. 2025 Date of Issue ............................. : 16 Dec. 2025 Test Result ..................................: Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 25 Report No.: STS2512332W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 5 1.2 MEASUREMENT UNCERTAINTY 5 2. GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF THE EUT 6 2.2 DESCRIPTION OF THE TEST MODES 7 2.3 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 8 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 9 2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 10 3. CONDUCTED EMISSION TEST RESULT (SECTION 15.207) 11 3.1 POWER LINE CONDUCTED EMISSION LIMITS 11 3.2 TEST PROCEDURE 12 3.3 TEST SETUP 12 3.4 EUT OPERATING CONDITIONS 12 3.5 TEST RESULTS 13 4. RADIATED& FIELD EMISSION TEST RESULT (SECTIOU 15.209) 15 4.1 LIMIT 15 4.2 TEST PROCEDURE 15 4.3 TEST SETUP 16 4.4 TEST RESULTS 17 5. 20 DB BANDWIDTH TEST 23 5.1 LIMIT 23 5.2 TEST SETUP 23 5.3 TEST RESULTS 24 APPENDIX-PHOTOS OF TEST SETUP 25 Page 4 of 25 Report No.: STS2512332W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 16 Dec. 2025 STS2512332W01 ALL Initial Issue Page 5 of 25 Report No.: STS2512332W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.209(a) Radiated emission, Spurious Emission PASS 2.1049 20 dB Bandwidth PASS 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.755dB 2 Unwanted Emissions, conducted ±2.874dB 3 All emissions, radiated 9K-30MHz ±3.80dB 4 All emissions, radiated 30M-1GHz ±4.18dB 5 All emissions, radiated 1G-6GHz ±4.90dB 6 All emissions, radiated>6G ±5.24dB 7 Conducted Emission (9KHz-150KHz) ±2.19dB 8 Conducted Emission (150KHz-30MHz) ±2.53dB 9 Occupied Channel Bandwidth ±3.5% 10 Power Spectral Density, conducted ±1.245dB 11 Duty Cycle ±3.2% Page 6 of 25 Report No.: STS2512332W01 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name SLIM II Wireless2.0 SS5K Brand CIO Model Number CIO-MB20W1C-SSA5K-S2W15 Series Model(s) N/A Model Difference N/A Equipemnt Category Non-ISM frequency Antenna Type loop coil antenna Operating frequency 115kHz-205kHz; 360kHz Modulation Type ASK Power Rating USB-C Input: DC 5V/3A, DC 9V/2.22A USB-C Output: DC 5V/2A, DC 9V/2.22A Wireless Output:15W Max USB-C+Wireless Charging Output: 5W+5W 10W Max Adapter N/A Battery DC 3.92V Wireless charging power 15W Max Hardware version number N/A Software version number N/A Connecting I/O Port(s) Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. 2. Table for Filed Antenna Ant. Brand Model Name Antenna Type Connector NOTE 1 N/A N/A Coil N/A Antenna Page 7 of 25 Report No.: STS2512332W01 2.2 DESCRIPTION OF THE TEST MODES To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively. Pretest Mode Description Mode 1 Charging+TX Mode(5W, 115-205kHz) Mode 2 TX Mode(5W, 115-205kHz) Mode 3 TX Mode(15W, 360kHz) For Conducted Emission Final Test Mode Description Mode 1 Charging+TX Mode(5W, 115-205kHz) For Radiated Emission Final Test Mode Description Mode 1 Charging+T…

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Page 1 of 2 FCC ID: 2BTD7-SSA5K-S2W15 Conducted emissions 9kHz-30MHz Page 2 of 2 FCC ID: 2BTD7-SSA5K-S2W15 30MHz-1GHz