O57AP402UStylus Pen

Lenovo (Shanghai) Electronics Technology Co., Ltd Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: March 26, 2026 Subject: Certifications concerning “covered” equipment pursuant to Part 2.911(d)(5)(i) and (ii) FCC ID: O57AP402U To whom it may concern, Lenovo (Shanghai) Electronics Technology Co., Ltd certifies that the equipment for which authorization is sought is not the equipment on the Covered List, as established pursuant to § 1.50002 of CFR Title 47, that is prohibited from obtaining an equipment authorization under this subpart. This includes equipment that: (1) Has been certified as a modular transmitter; or (2) Meets the modular transmitter requirements of § 15.212 of this chapter and could be certified as a modular transmitter. pursuant to section 2.903 resulting the recent adoption of FCC 25-71 (et al., ET Docket No. 21-232, Second Report and Order); or (3) Uncrewed aircraft systems (UAS) and UAS critical components produced in a foreign country and all communications and video surveillance equipment and services listed in Section 1709(a)(1) of the FY25 National Defense Authorization Act (Pub. L. 118-159) Applicant 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. Applicant further certifies that no 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 is installed in the equipment being certified. The above-referenced Covered List is published by the Public Safety and Homeland Security Bureau (PSHSB), pursuant to Section 1.50002 of the Commission’s rules. Sincerely, ________________________ Contact Person: Spring Zhou E-mail: [email protected]

------------------------------------------------- --------------------------------------- Lenovo (Shanghai) Electronics Technology Co., Ltd. Section 304-305, Building No. 4, # 222, Meiyue Road, China (Shanghai) Pilot Free Trade Zone Date: 1 / 23 / 2024 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Certification designating a U.S. agent for service of process pursuant to Part 2.911(d)(7) To whom it may concern, [ Lenovo (Shanghai) Electronics Technology Co., Ltd.] and FCC Grantee code：[ O57 ], FRN: 0021773460 (“the applicant”) certifies that, as of the date of the filing of application, [ Lenovo (United States) Incorporated ] (“the agent”) is designated as the U.S. agent for the purpose of accepting service of process on behalf of the applicant for Lenovo branded products. The physical U.S. address and email for the designated agent are: Physical U.S. address: [ 8001 Development Drive, Morrisville, NC 27560, United States ] FRN: 0012799359 Email: [ [email protected] ] 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 agent accepts the designation by (the applicant) as the U.S. agent to accept service of process includes, but is not limited to, delivery of any correspondence, notices, orders, decisions, and requirements of administrative, legal, or judicial process related to Commission proceedings. Signed by the Applicant Signed by the Agent (if different from the Applicant) Name: Spring Zhou Name: Brian Killebrew Title: GIC Tablet & Mobile Gaming Business Product Certification Manager Address: Section 304-305, Building No. 4, # 222, Meiyue Road, China (Shanghai) Pilot Free Trade Zone Title: Director, Corporate Regulatory Compliance, Standards and ISO 9001 Address: 8001 Development Drive Morrisville, NC 27560 Email: [email protected] Email: [email protected]

Rev. 1/1/03 Lenovo (Shanghai) Electronics Technology Co., Ltd Date: March 26, 2026 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: O57AP402U Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Schematics Block Diagram Parts List Operation Description 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. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Spring Zhou

Lenovo (Shanghai) Electronics Technology Co., Ltd Date: March 26, 2026 Power of Attorney To whom it may concern, Please be notified that I, Spring Zhou, have designated Jim Tsai in Sporton International Inc. (Kunshan) as the person being responsible for this project and to sign the form 731 and other documentation. Any and all acts carried out in their professional capacity by Sporton International Inc. (Kunshan) on the matters of relating to all processes required in the FCC approval and any communication needed with the national authority, shall have the same legal authority as acts on our own behalf including the release of confidential information. We further certifies that neither the applicant nor any party to this application, as defined in 47 CFR Ch. 1.2002 (b), is subject to a denial to Federal benefits, that include FCC benefits, pursuant to section 5301 of the Anti-Drug Abuse Act of 1998, 21 U.S.C. 835(a). This authorization is limited to the product of as following: FCC ID: O57AP402U If you have any acknowledgement and response, please send it to Sporton International Inc. (Kunshan) directly. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely yours, _____________________ Contact Person: Spring Zhou E-mail: [email protected]

1/1 Lenovo (Shanghai) Electronics Technology Co., Ltd Date: March 26, 2026 Federal Communications Commission Authorization and Evaluation Division RE : Certification Application FCC ID: O57AP402U To Whom It May Concern, Pursuant to sections 0.457 and 0.459 of CFR 47, Public Notice DA 04-1705 of the Commission’s policy and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 180 days: ⚫ External Photos ⚫ Internal Photos ⚫ Test set-up photos ⚫ Users Manual The application contains technical information, which Lenovo (Shanghai) Electronics Technology Co., Ltd deems to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the market place. The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application Sincerely, Contact Person: E-mail: [email protected]

Lenovo Tab Pen XE Stylus Pen ModelAP402U FCC ID: O57AP402U CAN ICES(B)/NMB(B) Manufactured for Lenovo EU ContactLenovo (Slovakia), Landererova 12, 811 09 Bratislava, Slovakia 联想（北京）有限公司 Made in China/中国制造/中國製造 I.T.E.ACCESSORY E302338 R-R-LVK-AP402U

7.99 Simulation performed at 2026/03/09 using Sim4Life version 9.0.0.18820 Appendix AReport No. : FA611609 Page: 1/2 DASY8 Module WPT Measurement Report Device under test Info: Tool info DASY software version: DASY8 Module WPT 3.4.0.6944 Probe model, serial no. and configuration date: MAGPy-8H3D+E3Dv3, 4007, 2025-11-28, Software version: 3.4.0, backend: 3.2.21 Scan info Center location: x: 101.42 mm, y: 9.17 mm, z: 36.28 mm Dimensions: x: 168.6 mm, y: 168.6 mm, z: 36.6 mm Resolution: x: 7.33 mm, y: 7.33 mm, z: 7.33 mm Completed on 2026/03/09 Measurement results Maximum H-field [rms]: magnitude:134.23 A/m x: 20.04 A/m, y: 5.88 A/m, z: 132.60 A/m Maximum H-field location relative to DUT: x: -3.67 mm, y: 14.33 mm, z: 8.50 mm Maximum E-field [rms]: magnitude:48.00 V/m x: 26.44 V/m, y: 15.36 V/m, z: 36.99 V/m Maximum E-field location relative to DUT: x: 7.33 mm, y: -4.00 mm, z: 0.00 m Distance to -20.0 dB boundary: 37.39 mm Offset relative to DUT: x: 0.00 m, y: 40.00 mm, z: 1.00 mm H-field magnitude [rms] at center location H-field magnitude [rms] at lowest plane Incident fields and induced fields in the homogeous phantom at the peak frequency Peak incident fields [ rms ] Peak E ind [V/m, rms ] Peak J ind [A/m 2 , rms ] psSAR [mW/kg] H-field extent Distance [mm] H inc [A/m]E inc [V/m] Cube avg.LocalLine avg.Surface avg.1g avg.10g avg. -20 dB radius [mm] 0.00 26448.04.234.334.322.707.163.5239.3 2.0023344.63.663.763.752.305.262.6339.4 Compliance evaluation (Field values at the peak frequency) ICNIRP 2010/2020 ICNIRP 1998 IEEE 2019 FCC HC Code 6 RL [rms]BR [rms]RL [rms]BR [rms]ERL [rms]DRL [rms]MPE [rms]BR [rms]RL [rms]BR [rms] Distance pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR [mm][A/m][V/m][V/m][mW/kg][A/m][V/m] [A/m 2 ] [mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg] 0.00 26448.022.83.5226448.02.703.5226448.012.83.5226448.0N/A7.1626448.032.97.16 2.00 23344.619.72.6323344.62.312.6323344.611.12.6323344.6N/A5.2623344.628.65.26 Coverage factors: w E ind, cube avg. = [5.39, 5.39], w E ind, local = [7.61, 7.61], w E ind, line avg. = [2.95, 2.95] Compliance evaluation (Exposure ratios) (with multi-frequency enhancement, total field evaluation, coverage evaluation) ICNIRP 2010/2020 ICNIRP 1998 IEEE 2019 FCC HC Code 6 RLBRRLBRERLDRLMPEBRRLBR Distance [mm] pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR NSTHNSTHNSTHN/AN/ANSTHNSTHNSTHNSTHN/AN/AN/ATHNSTHNSTHNSTH 0.00 12.621.6133.031.00.44<0.01145.0290.04.53<0.011.622.917.980.30.17<0.01162.0159.0N/A<0.012.93145.0133.0N/A0.63<0.01 2.00 11.119.0123.028.80.39<0.01128.0270.03.96<0.011.432.5616.774.70.15<0.01143.0148.0N/A<0.012.59128.0123.0N/A0.55<0.01 Coverage factors: w E ind, cube avg. = [5.39, 5.39], w E ind, local = [7.61, 7.61], w E ind, line avg. = [2.95, 2.95] V-Coil50400_1018 Simulation performed at 2026/03/09 using Sim4Life version 9.0.0.18820 1/1 Appendix AReport No. : FA611609 Page: 2/2

Appendix BReport No. : FA611609 Page: 1/2 Appendix BReport No. : FA611609 Page: 2/2

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Sporton International Inc. (Kunshan) Page Number : 1 of 13 TEL : +86-512-57900158 Report Issued Date : Mar. 30, 2026 FCC ID : O57AP402U Report Version : Rev. 01 RF Exposure Report Report No. : FA611609 RF Exposure Report FCC ID : O57AP402U Equipment : Stylus Pen Brand Name : Lenovo Model Name : AP402U Applicant : Lenovo(Shanghai) Electronics Technology Co., Ltd. Section 304-305, Building No. 4, # 222, Meiyue Road, China (Shanghai) Pilot Free Trade Zone Manufacture : Lenovo Ireland International Limited Viscount House, 6/7 Fitzwilliam Square East, Dublin, D02 Y447, Ireland Standard : FCC 47 CFR Part 2.1093 Date Tested : Mar. 09, 2026 We, Sporton International Inc. (Kunshan), would like to declare that the tested sample has been evaluated in accordance with the test procedures given in 47 CFR Part 2.1093 and has been in compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Si Zhang Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page Number : 2 of 13 TEL : +86-512-57900158 Report Issued Date : Mar. 30, 2026 FCC ID : O57AP402U Report Version : Rev. 01 RF Exposure Report Report No. : FA611609 Table of Contents 1. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 4 1. ADMINISTRATION DATA ........................................................................................................................... 4 2. RF EXPOSURE LIMIT ................................................................................................................................. 5 3. SYSTEM DESCRIPTION AND SETUP ....................................................................................................... 6 4. EQUIPMENT LIST ....................................................................................................................................... 9 5. SYSTEM VALIDIATION .............................................................................................................................. 9 6. RF EXPOSURE RESULTS ........................................................................................................................ 10 6.1. Maximum Permissible Exposure Evaluation ................................................................................... 10 7. UNCERTAINTY .......................................................................................................................................... 11 8. REFERENCE ............................................................................................................................................. 12 APPENDIXES ................................................................................................................................................... 13 Appendix A. Plots of System Performance Check ..................................................................................... 13 Appendix B. Plots of High Measurement Result ........................................................................................ 13 Appendix C. DASY Calibration Certificate ................................................................................................. 13 Appendix D. Test Setup Photos ................................................................................................................. 13 Sporton International Inc. (Kunshan) Page Number : 3 of 13 TEL : +86-512-57900158 Report Issued Date : Mar. 30, 2026 FCC ID : O57AP402U Report Version : Rev. 01 RF Exposure Report Report No. : FA611609 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA611609 Rev. 01 Initial issue of report Mar. 30, 2026 Sporton International Inc. (Kunshan) Page Number : 4 of 13 TEL : +86-512-57900158 Report Issued Date : Mar. 30, 2026 FCC ID : O57AP402U Report Version : Rev. 01 RF Exposure Report Report No. : FA611609 1. Description of Equipment Under Test (EUT) Product Feature & Specification FCC ID O57AP402U Equipment Stylus Pen Brand Name Lenovo Model Name AP402U Frequency Range 111 KHz ~ 400KHz Mode PWM S/N 8SSO28FO55253CSZ61EOOBN Declaration of Conformity: The test results with all measurement uncertainty excluded are presented in accordance with the regulation limits or requirements declared by manufacturers. Comments and Explanations: The declared of product specification for EUT presented in the report are provided by the manufacturer, and the manufacturer takes all the responsibilities for the accuracy of product specification. 1. Administration Data Sporton International Inc. (Kunshan) is accredited to ISO/IEC 17025:2017 by American Association for Laboratory Accreditation with Certificate Number 5145.02. Testing Laboratory Test Firm Sporton International Inc. (Kunshan) Test Site Location No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China TEL : +86-512-57900158 Test Site No. Sporton Site No. FCC Designation No. FCC Test Firm Registration No. SAR05-KS CN1257 314309 Sporton International Inc. (Kunshan) Page Number : 5 of 13 TEL : +86-512-57900158 Report Issued Date : Mar. 30, 2026 FCC ID : O57AP402U Report Version : Rev. 01 RF Exposure Report Report No. : FA611609 2. RF Exposure Limit <Limits for Maximum Permissible Exposure> § 1.1310 The criteria listed in table 1 shall be used to evaluate the environmental impact of human exposure to radio frequency(RF) radiation as specified in § 1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of § 2.1093 of this chapter. (1) Occupational/controlled exposure limits apply in situations in which persons are exposed as a consequence of their…

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Sporton International Inc. (Kunshan) Page Number : 1 of 18 TEL : +86-512-57900158 Report Issued Date : Mar. 26, 2026 FCC ID: O57AP402U Report Version : Rev. 01 Report Template No.: BU5-FR15CWPC Version 2.4 FCC RF Test Report Report No. : FR611609 FCC RF Test Report APPLICANT : Lenovo(Shanghai) Electronics Technology Co., Ltd. EQUIPMENT : Stylus Pen BRAND NAME : Lenovo MODEL NAME : AP402U FCC ID : O57AP402U STANDARD : FCC Part 15 Subpart C §15.209 CLASSIFICATION : (DCD) Part 15 Low Power Transmitter Below 1705 kHz TEST DATE(S) : Mar. 14, 2026 We, Sporton International Inc. (Kunshan), would like to declare that the tested sample has been evaluated in accordance with the test procedures and has been in compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Jason Jia Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page Number : 2 of 18 TEL : +86-512-57900158 Report Issued Date : Mar. 26, 2026 FCC ID: O57AP402U Report Version : Rev. 01 Report Template No.: BU5-FR15CWPC Version 2.4 FCC RF Test Report Report No. : FR611609 TABLE OF CONTENTS TABLE OF CONTENTS ............................................................................................................................................... 2 REVISION HISTORY .................................................................................................................................................... 3 SUMMARY OF THE TEST RESULT ........................................................................................................................... 4 1. GENERAL DESCRIPTION ...................................................................................................................................... 5 1.1 Applicant ......................................................................................................................................................................... 5 1.2 Manufacturer .................................................................................................................................................................. 5 1.3 Product Feature of Equipment Under Test ..................................................................................................................... 5 1.4 Modification of EUT ........................................................................................................................................................ 5 1.5 Testing Location ............................................................................................................................................................. 6 1.6 Test Software ................................................................................................................................................................. 6 1.7 Applicable Standards...................................................................................................................................................... 6 2. TEST CONFIGURATION OF EQUIPMENT UNDER TEST .................................................................................... 7 2.1 Descriptions of Test Mode .............................................................................................................................................. 7 2.2 Connection Diagram of Test System .............................................................................................................................. 7 2.3 Table for Supporting Units .............................................................................................................................................. 7 3. TEST RESULTS ....................................................................................................................................................... 8 3.1 Radiated Emissions Measurement ................................................................................................................................. 8 3.2 Antenna Requirements ................................................................................................................................................. 16 4. LIST OF MEASURING EQUIPMENT .................................................................................................................... 17 5. UNCERTAINTY OF EVALUATION ....................................................................................................................... 18 Sporton International Inc. (Kunshan) Page Number : 3 of 18 TEL : +86-512-57900158 Report Issued Date : Mar. 26, 2026 FCC ID: O57AP402U Report Version : Rev. 01 Report Template No.: BU5-FR15CWPC Version 2.4 FCC RF Test Report Report No. : FR611609 REVISION HISTORY REPORT NO. VERSION DESCRIPTION ISSUED DATE FR611609 Rev. 01 Initial issue of report Mar. 26, 2026 Sporton International Inc. (Kunshan) Page Number : 4 of 18 TEL : +86-512-57900158 Report Issued Date : Mar. 26, 2026 FCC ID: O57AP402U Report Version : Rev. 01 Report Template No.: BU5-FR15CWPC Version 2.4 FCC RF Test Report Report No. : FR611609 SUMMARY OF THE TEST RESULT Report Clause Ref Std. Clause Test Items Result (PASS/FAIL) Remark 3.1 15.209 Radiated Emission Pass Under limit 12.00 dB at 30.97MHz - 15.207 AC Conducted Emission Not Applicable 1 3.2 15.203 Antenna Requirements Pass - Remark 1: The EUT only powered by non-rechargeable battery. Conformity Assessment Condition: 1. The test results (PASS/FAIL) with all measurement uncertainty excluded are presented against the regulation limits or in accordance with the requirements stipulated by the applicant/manufacturer who shall bear all the risks of non-compliance that may potentially occur if measurement …

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AP402U SRD Antenna Specification  Model No.: QFY- 60380158  Brand Name: N/A  SRD Working Frequency: 111-400 KHz  Antenna Type: Spring Antenna  Manufacturer：Shenzhen Qianfenyi Intelligent Technology Co., LTD  Manufacturer Address: Room 2101, Building 3, Nanshan i Park Chongwen, No. 3370 Liuxian Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province, P.R.China