2BTK3-RST-88Multi functional warming coaster

Multi functional warming coaster usage instructions FCCWarning ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwo conditions: (1)Thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptany interferencereceived,includinginterferencethatmaycauseundesiredoperation. NOTE1:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital device,pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonable protectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates, usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththe instructions,maycauseharmfulinterferencetoradiocommunications.However,thereisno guaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoes causeharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturning theequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneor moreofthefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. -Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. -Consultthedealeroranexperiencedradio/TVtechnicianforhelp. NOTE2:Anychangesormodificationstothisunitnotexpresslyapprovedbytheparty responsibleforcompliancecouldvoidtheuser'sauthoritytooperatetheequipment. RFExposureStatement TomaintaincompliancewithFCC'SRFExposureguidelines,Thisequipmentshouldbeinstalled andoperatedwithminimum20cmbetweentheradiatorandyourbody.Thisdeviceandits antenna(s)mustnotbeco-locatedoroperationinconjunctionwithanyotherantennaor transmitter.

Rev 1/26/2023 (Wenzhou Ruishuo Electronic Technology Co.,Ltd) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: December 10, 2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BTK3-RST-88 [Wenzhou Ruishuo Electronic Technology Co.,Ltd] 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. [Wenzhou Ruishuo Electronic Technology Co.,Ltd] certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Jie Chen) Rev 1/26/2023 (Wenzhou Ruishuo Electronic Technology Co.,Ltd) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: December 10, 2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BTK3-RST-88 [Wenzhou Ruishuo Electronic Technology Co.,Ltd] certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, (Jie Chen)

Wenzhou Ruishuo Electronic Technology Co.,Ltd U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: December 10, 2025 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BTK3-RST-88 Wenzhou Ruishuo Electronic Technology Co.,Ltd(“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant Wenzhou Ruishuo Electronic Technology Co.,Ltd FRN: 0037722691 Address: No.609 Zhengsong Avenue, Wanquan, Pingyang County,Wenzhou City, Zhejiang Province, China Signature: Contact Person: Jie Chen Tel: +86-19179655376 Email: [email protected]

Wenzhou Ruishuo Electronic Technology Co.,Ltd Date: December 10, 2025 Product Model Number: Rst-88 FCC ID: 2BTK3-RST-88 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that QAI Laboratories Ltd. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: Jie Chen Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: +86-19179655376 On behalf of: Wenzhou Ruishuo Electronic Technology Co.,Ltd

Wenzhou Ruishuo Electronic Technology Co.,Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: December 10, 2025 Subject; Request for Confidentiality FCC ID: 2BTK3-RST-88 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely: Signature: Name: Jie Chen Title: Manager

FY-GZ001 Shenzhen Licheng Xing Technology Co., LTD acknowledgement 客戶： CUSTOMER: SPECIFICATION FOR APPROVAL Wenzhou Ruishuo Electronic Technology Co.,Ltd 客 戶 料 號： CUST P/N: 内部 料 號 ： LCX P/N: 産 品 型 號： DESC: 日期： DATE: 版本： Version: 1.007.00248 LCX-KH226TX013 Ø16.5*39-0.08*105P-11TS-25-43.52LOC-BMJ1.5 2024/4/12 A.0 制作 PREPARED BY 审核 CHECKED BY 批准 APPROVED BY 客戶承认 CUSTOMER APPROVE Xiong Gang 2024/4/12 Gao Yinghong 2024/4/12 address：4F 401, Building 7B, Rongchang Industrial Park, No. 440, Hengkeng Village, Guancheng Community, Guanhu Street, LonghuaDistrict, Shenzhen telephone： 13828741697 E-mail:[email protected] FY-GZ001 产品规格书SPECIFICATION Drawing number：LCX-GCQP0001164 edition A/0 manufacture：Xiong Gang 2024/4/12 examine： Gao Yinghong 2024/4/12 Customer code：CUST KH226 Specification and model Ø16.5*39-0.08*105P-11TS-25-43.52LOC- BMJ1.5 Customer part number：CUST P/N 1.007.00248 Internal part number： IN P/NLCX-KH226TX013 版本变更履历 Version Change History 版本 Rev 变 更 前 Before Change 变 更 后 After Change 更 改 日 期 Change Date 批准 Approved By A/0 New issue -----2024/4/12 Gao Yinghong 物料清单 Bill of material NOMaterial name Internal part number Material specificationunitdosageremark 1 coil Silk-covered wire0.08*105 g 5.5 2 Hard disk 43.5*5.3*1.0PCS1 3 Foam back glue 43*5.5*1.5PCS1 4 High-temperature tape 9*15*0.03PCS1 FY-GZ001 产品规格书 SPECIFICATION Drawing number：LCX-GCQP0001164 edition A/0 manufacture：Xiong Gang 2024/4/12 examine：Gao Yinghong 2024/4/12 Customer code： CUST KH226 Internal part number： Ø16.5*39-0.08*105P-11TS-25-43.52LOC- BMJ1.5 ustomer part number：CUST P/N 1.007.00248 Internal part number： IN P/N LCX-KH226TX013 AB------------------ 20 ±0.5 39 ------------------ 一、尺寸 DIMENSION:(mm) remark： 1, coil winding as shown in Figure 1, structure according to size requirements, can not be scattered, loose line. 2. Figure 2 Hard magnetic disc, specification: 43.5*5.3*0.8 3. as shown in Figure 3, the coil is glued in the center of the magnetic disc, and the lead is inserted into the slot 4. 43*5.5*1.5 foam double-sided tape is affixed to the back of the magnetic disc, and the release paper tape is torn by hand 二、原理图SCHEMATIC DIAGRAM: 三、绕线参数Winding Specification: 序号 NO 端子 TERMINAL 线径 WIRE 线材分解温度 Temperature 圈数 Turns 绕线方向 Winding Direction L1SF Silk-covered wire0.08*105 180-250 °11TS anticlockwise 四、电气特性ELECTRICAL CHARACTERISTIC：: 温度TEMPERATURE:25±10°C,湿度RELATIVE HUMIDITY:65±20% 序号 NO 磁片材质 Disk material inductance LS impedance DCR 测试条件 TEST FREQUENCY 测试仪器 TEST EQUIPMENTS L1 3.8uH±10% （Single coil） 50mΩ±10% 100KHz/1.0VU2832 L2 Hard disk 6.5uH±5% （Fit magnetic disc） 50mΩ±10% 100KHz/1.0V U2832 ±0.5 --- --- --- --- --- --- --- --- --- --- --- --- --- ---

Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report Annex A. EUT External Photos Model: Rst-88 EUT View 1 EUT View 2 Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report EUT View 3 EUT View 4 Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report EUT View 5 EUT View 6 Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report EUT View 7 EUT View 8

Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size:4.5cm*3cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report Annex B. EUT Internal Photos Model: Rst-88 EUT Internal View 1 EUT Internal View 2 Coil Antenna Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report EUT Internal View 3

Report No: SSP25100241-2E FCC Test Report Page 1 of 13 RF Exposure Report FCC ID: 2BTK3-RST-88 Report No. : SSP25100241-2E Applicant : Wenzhou Ruishuo Electronic Technology Co.,Ltd Product Name : Multi functional warming coaster Model Name : Rst-88 Test Standard : FCC CFR 47 PART 1, 1.1310 Date of Issue : 2025-11-14 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP25100241-2E FCC Test Report Page 2 of 13 Test Report Basic Information Applicant..................................: Wenzhou Ruishuo Electronic Technology Co.,Ltd Address of Applicant...............: No.609 Zhengsong Avenue, Wanquan, Pingyang County,Wenzhou City, Zhejiang Province, China Manufacturer..........................: Wenzhou Ruishuo Electronic Technology Co.,Ltd Address of Manufacturer........: No.609 Zhengsong Avenue, Wanquan, Pingyang County,Wenzhou City, Zhejiang Province, China Product Name.........................: Multi functional warming coaster Brand Name.............................: - Main Model..............................: Rst-88 Series Models..........................: - Test Standard..........................: FCC CFR 47 PART 1, 1.1310 KDB 680106 D01 Wireless Power Transfer v04 Date of Test .............................: 2025-10-23 to 2025-11-14 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP25100241-2E FCC Test Report Page 3 of 13 CONTENTS 1. General Information .................................................................................................................................................... 5 1.1 Product Information ............................................................................................................................................. 5 1.2 Test Setup Information .......................................................................................................................................... 6 1.3 Test Facilities ........................................................................................................................................................ 7 1.4 List of Measurement Instruments .......................................................................................................................... 8 1.5 Measurement Uncertainty ..................................................................................................................................... 8 2. RF Exposure ................................................................................................................................................................. 9 2.1 Standard and Limit................................................................................................................................................ 9 2.2 Test Procedures .................................................................................................................................................... 9 2.3 Test Data and Results .......................................................................................................................................... 10 Annex A. Test Photos ..................................................................................................................................................... 13 Report No: SSP25100241-2E FCC Test Report Page 4 of 13 Revision History Revision Issue Date Description Revised By V1.0 2025-11-14 Initial Release Lahm Peng Report No: SSP25100241-2E FCC Test Report Page 5 of 13 1. General Information 1.1 Product Information Product Name: Multi functional warming coaster Trade Name: - Main Model: Rst-88 Series Models: - Rated Voltage: Input: 9V⎓3A Output: 5W, 7.5W, 10W, 15W (Wireless output) Total power:22.5W Power Adapter: - Battery: - Test Sample No: SSP25100241-1 Hardware Version: 1.0 Software Version: 1.0 Note 1: The test data is gathered from a production sample, provided by the manufacturer. Wireless Specification Wireless Standard: WPC Operating Frequency: Wireless charging Output: 110.5-205kHz Modulation: FSK Antenna Gain: 0dBi Type of Antenna: Coil Antenna Type of Device: Portable Device Mobile Device Report No: SSP25100241-2E FCC Test Report Page 6 of 13 1.2 Test Setup Information List of Test Modes Test Mode Description Remark TM1 Wireless charging 15W+adapter charging - TM2 Wireless charging 10W+adapter charging - TM3 Wireless charging 7.5W+adapter charging - TM4 Wireless charging 5W+adapter charging - Note1: All modes have been tested and only the worst mode TM1 data is represented in the report. List and Details of Auxiliary Cable Description Length (cm) Shielded/Unshielded With/Without Ferrite - - - - - - - - List and Details of Auxiliary Equipment Description Manufacturer Model Serial Number Phone iPhone iPhone 12pro - Adapter Ruishuo TE-009 N/A Report No: SSP25100241-2E FCC Test Report Page 7 of 13 1.3 Test Facilities Laboratory Name: Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China CNAS Laboratory No.: L18863 A2LA Certificate No.: 6983.01 FCC Registration No: 583813 FCC Designation No.: CN1373 ISED Registration No.: CN0164 All measurement facilities used to collect the measurement data…

Text truncated - open the document above for the full version.

Report No: SSP25100241-1E FCC Test Report Page 1 of 23 FCC TEST REPORT FCC ID: 2BTK3-RST-88 Report No. : SSP25100241-1E Applicant : Wenzhou Ruishuo Electronic Technology Co.,Ltd Product Name : Multi functional warming coaster Model Name : Rst-88 Test Standard : FCC Part 15 Subpart C Date of Issue : 2025-11-14 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP25100241-1E FCC Test Report Page 2 of 23 Test Report Basic Information Applicant..................................: Wenzhou Ruishuo Electronic Technology Co.,Ltd Address of Applicant...............: No.609 Zhengsong Avenue, Wanquan, Pingyang County,Wenzhou City, Zhejiang Province, China Manufacturer..........................: Wenzhou Ruishuo Electronic Technology Co.,Ltd Address of Manufacturer........: No.609 Zhengsong Avenue, Wanquan, Pingyang County,Wenzhou City, Zhejiang Province, China Product Name.........................: Multi functional warming coaster Brand Name.............................: - Main Model..............................: Rst-88 Series Models..........................: - Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2020 Date of Test .............................: 2025-10-23 to 2025-11-14 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP25100241-1E FCC Test Report Page 3 of 23 CONTENTS 1. General Information .................................................................................................................................................... 5 1.1 Product Information ............................................................................................................................................. 5 1.2 Test Setup Information .......................................................................................................................................... 6 1.3 Compliance Standards ........................................................................................................................................... 7 1.4 Test Facilities ........................................................................................................................................................ 7 1.5 List of Measurement Instruments .......................................................................................................................... 8 1.6 Measurement Uncertainty ..................................................................................................................................... 8 2. Summary of Test Results ............................................................................................................................................. 9 3. Antenna Requirement ............................................................................................................................................... 10 3.1 Standard and Limit.............................................................................................................................................. 10 3.2 Test Result .......................................................................................................................................................... 10 4. Conducted Emissions ................................................................................................................................................ 11 4.1 Standard and Limit.............................................................................................................................................. 11 4.2 Test Procedure.................................................................................................................................................... 11 4.3 Test Data and Results .......................................................................................................................................... 12 5. Radiated Emissions ................................................................................................................................................... 15 5.1 Standard and Limit.............................................................................................................................................. 15 5.2 Test Procedure.................................................................................................................................................... 15 5.3 Test Data and Results .......................................................................................................................................... 17 6. Occupied Bandwidth ................................................................................................................................................. 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results ........................................................................................................................…

Text truncated - open the document above for the full version.

Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View 1 Report No: SSP25100241-1E FCC ID: 2BTK3-RST-88 Annex of Test Report Radiated Emission Test View 2