JNZMR0121Wireless Mouse

#2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Date: 2025-12-05 FCC ID: JNZMR0121 To the attention of Federal Communications Commission Authorization and Evaluation Division Declaration letter for label requirement The FCC label is permanently affixed inside the battery compartment. The EUT will be sold with batteries pre installed and a pull tab for activation. End users must remove the battery cover and pull out the tab before powering on, during which the label is clearly visible. The battery cover can be opened without any special tools. Sincerely yours, ----------------------------------- David W Crawford / Senior Manager, Compliance Engineering Logitech, Inc. Tel: +1-360-817-1253 E-mail: [email protected]

Date: [12/4/2025] FCC ID: JNZMR0121 To the attention of Federal Communications Commission Authorization and Evaluation Division Attestation Statements Attestation Statements Part 2.911(d)(5)(i) Filing LOGITECH FAR EAST 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. Attestation Statements Part 2.911(d)(5)(ii) Filing LOGITECH FAR EAST 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 yours, ----------------------------------------------- David W Crawford / Senior Manager, Compliance Engineering LOGITECH FAR EAST LTD. Tel: +1-360-817-1253 E-mail: [email protected]

Date: 12/4/2025 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) FCC US Agent Letter of Attestation FCC ID: JNZMR0121 To whom it may concern: FCC US Agent Agent Company Name: Logitech, Inc. FCC FRN: 0005921077 Agent Contact Name: David W Crawford Agent US Address: 4700 NW Camas Meadows Drive, Camas, WA 98607 Agent Email Address: [email protected] This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of Logitech Far East, Ltd. (“the applicant”) for the above referenced FCC ID. We are aware of the requirements and responsibilities of the applicant’s agent for service of process as outlined in the FCC section 2.911(d)(7) and Report and Order FCC 22-84 paragraph 63. Sincerely, David W Crawford Senior Manager, Compliance Engineering Logitech, Inc.

Date: 12/4/2025 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) Agent Designation Attestation FCC ID: JNZMR0121 Applicant (Grantee) FRN: 0007134034 Logitech Far East, Ltd., (“the applicant”) as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicant’s agent for service of process. The applicant acknowledges that they will 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. The applicant further acknowledges their responsibility under CFR 47 §2.929(c) to inform the FCC whenever the agent information changes. U.S. Agent Information: Contact Person: David W Crawford Company Name: Logitech, Inc. Company Address: 4700 NW Camas Meadows Drive, Camas, WA 98607 Email: [email protected] FCC FRN: 0005921077 Sincerely yours, Name: Rick Lien Job Title: Head of Product Compliance Company Name: Logitech Far East, Ltd. Email: [email protected] Tel: +886-3-5778241 #2189

#2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. To the attention of Federal Communications Commission Authorization and Evaluation Division Date: 2025-12-04 FCC ID: JNZMR0121 Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Diagram Block Diagram Theory of Operation The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we request short-term confidential treatment for the following information until 180 days after the Grant Date of Equipment Authorization in order to ensure sensitive business information remains confidential until the actual marketing of the device: External photos Internal Photos Test Setup photos User’s manual The Applicant understands 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. Sincerely yours, ----------------------------------- David W Crawford/ Senior Manager, Compliance Engineering Logitech, Inc. Tel: +1-360-817-1253 E-mail: [email protected]

#2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Date: 2025-12-04 FCC ID: JNZMR0121 AUTHORIZATION LETTER To Whom It May Concern: Logitech Far East Ltd hereby authorizes Jenny Nien / Specialist of Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch (“BV CPS Taoyuan”), to act on its behalf in all matters relating to the Federal Communication Commission (“FCC”) application for equipment authorization in connection with the FCC ID listed above, including signing of all documents relating to these matters. Any and all acts carried out by Jenny Nien / Specialist of BV CPS Taoyuan on Logitech Far East Ltd’s behalf, within the scope of the powers granted herein, shall have the same effect as acts of its own. If you have any questions regarding the authorization, please don’t hesitate to contact us. Sincerely yours, ----------------------------------- David W Crawford / Senior Manager, Compliance Engineering Logitech, Inc. Tel: +1-360-817-1253 E-mail: [email protected]

#2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Date: 2025-12-04 FCC ID: JNZMR0121 AUTHORIZATION LETTER To whom it may concern: I, the undersigned Rick Lien of Logitech Far East Ltd hereby authorize David W Crawford of Logitech, Inc. to act on my behalf in all matters relating to all processes required in FCC and any communication needed with the national authority. Any and all acts carried out by David W Crawford on my behalf shall have the same effects as acts of our own. If you have any questions regarding the authorization, please don’t hesitate to contact us. Thank you! Sincerely yours, ----------------------------------- Rick Lien / Head of Product Compliance Logitech Far East Ltd Tel: +886-3-6122189 Fax: +886-3-5792394 E-mail: [email protected]

FCC ID : JNZMR0121 IC : 4418A-MR0121 LABEL & Label LOCATION The label will be permanently affixed at a conspicuous location on the device. BATTERY CAGE

Report No.: MFBDKG-WTW-P25040022 Page No. 1 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P25040022 RF EXPOSURE REPORT CERTIFICATE OF CONFORMITY FCC Rule Part: FCC Part 2 (Section 2.1093) Report No.: MFBDKG-WTW-P25040022 FCC ID: JNZMR0121 Product: Wireless Mouse Brand: Logitech, logi, logitech Model No.: MR0121 Received Date: 2025/10/29 Test Date: 2025/12/4 Issued Date: 2025/12/18 Applicant: Logitech Far East Ltd. Address: #2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan FCC Registration / Designation Number: 723255 / TW2022 Approved by: , Date: 2025/12/18 Wen Yu / Assistant Manager This test report consists of 9 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The test results in the report only apply to the tested sample. The test results in this report are traceable to the national or international standards. Prepared by: Vito Lung / Specialist This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our- business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Report No.: MFBDKG-WTW-P25040022 Page No. 2 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P25040022 Table of Contents Release Control Record ....................................................................................................................................................... 3 1 Certificate .................................................................................................................................................................... 4 2 Applicable RF Exposure Limit .................................................................................................................................. 5 3 Test Results ................................................................................................................................................................ 7 4 Conclusion .................................................................................................................................................................. 8 5 Information of the Testing Laboratories .................................................................................................................. 9 Report No.: MFBDKG-WTW-P25040022 Page No. 3 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P25040022 Release Control Record Issue No. Description Date Issued MFBDKG-WTW-P25040022 Original release. 2025/12/18 Report No.: MFBDKG-WTW-P25040022 Page No. 4 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P25040022 1 Certificate Product: Wireless Mouse Brand: Logitech, logi, logitech Test Model: MR0121 Sample Status: Engineering sample Applicant: Logitech Far East Ltd. Test Date: 2025/12/4 FCC Rule Part: FCC Part 2 (Section 2.1093) Standard: KDB 447498 D04 Interim General RF Exposure Guidance v01 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s RF characteristics under the conditions specified in this report. Report No.: MFBDKG-WTW-P25040022 Page No. 5 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P25040022 2 Applicable RF Exposure Limit § 1.1310 Radiofrequency radiation exposure limits. (a) Specific absorption rate (SAR) shall be used to evaluate the environmental impact of human exposure to radiofrequency (RF) radiation as specified in § 1.1307(b) of this part within the frequency range of 100 kHz to 6 GHz (inclusive). (b) The SAR limits for occupational/controlled exposure are 0.4 W/kg, as averaged over the whole body, and a peak spatial-average SAR of 8 W/kg, averaged over any 1 gram of tissue (defined as a tissue volume in the shape of a cube). Exceptions are the parts of the human body treated as extremities, such as hands, wrists, feet, ankles, and pinnae, where the peak spatial-average SAR limit for occupational/controlled exposure is 20 W/kg, averaged over any 10 grams…

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

Report No.: AGBDKG-WTW-P25040022 Page No. 1 / 16 Report Format Version:6.1.2 Antenna Gain Measurement Report Report No.: AGBDKG-WTW-P25040022 Brand: Logitech, logi, logitech Model No.: MR0121 Received Date: 2025/10/29 Test Date: 2025/11/11 Issued Date: 2025/12/8 Applicant: Logitech Far East Ltd. Address: #2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan BranchHsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan FCC Registration / Designation Number: 723255 / TW2022 Prepared by : , Date: 2025/12/8 Claire Kuan / Senior Specialist Approved by : , Date: 2025/12/8 Wen Yu / Assistant Manager This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Report No.: AGBDKG-WTW-P25040022 Page No. 2 / 16 Report Format Version:6.1.2 Table of Contents Release Control Record .................................................................................................................................. 3 1 EUT Antenna System Description .................................................................................................... 4 1.1 Antenna Information.............................................................................................................................. 4 1.2 Antenna Location .................................................................................................................................. 4 2 2D Antenna Pattern Measurement .................................................................................................... 5 2.1 Test Location ......................................................................................................................................... 5 2.2 Test Measurement procedure ............................................................................................................... 5 2.3 Test Setup Diagram @ Fully Anechoic Chamber ................................................................................. 5 2.4 Test Setup Diagram for EUT ................................................................................................................. 6 2.5 Test Instruments .................................................................................................................................... 6 2.6 Measurement Uncertainty ..................................................................................................................... 7 2.7 Test Procedure ...................................................................................................................................... 8 2.8 Test Result ............................................................................................................................................ 9 2.9 2D Pattern Test Plots .......................................................................................................................... 10 Appendix - Information of the Testing Laboratories .................................................................................. 16 Report No.: AGBDKG-WTW-P25040022 Page No. 3 / 16 Report Format Version:6.1.2 Release Control Record Issue No. Description Date Issued AGBDKG-WTW-P25040022 Original release. 2025/12/8 Report No.: AGBDKG-WTW-P25040022 Page No. 4 / 16 Report Format Version:6.1.2 1 EUT Antenna System Description 1.1 Antenna Information Antenna Net Gain(dBi) Frequency range Antenna Type Connector Type 1.84 2.4~2.4835GHz Ceramic Antenna none 1.2 Antenna Location Please refer to the attached file (Test Setup Photo) Report No.: AGBDKG-WTW-P25040022 Page No. 5 / 16 Report Format Version:6.1.2 2 2D Antenna Pattern Measurement 2.1 Test Location 2D antenna pattern measurement in Fully Anechoic Chamber 2.2 Test Measurement procedure CISPR 16-1-6 ANSI 63.10-2020 clause 13 KDB 412172 D01 Determining ERP and EIRP v01r01 2.3 Test Setup Diagram @ Fully Anechoic Chamber The 2D antenna pattern measurement is using the test system (refer to Figure 1). The EUT is positioned on center of turntable, for Free Space only in fully anechoic chamber. Data (Raw Value) is recorded using the spectrum analyzer at each position. Figure 1. 2D antenna pattern test system. Report No.: AGBDKG-WTW-P25040022 Page No. 6 / 16 Report Format Version:6.1.2 2.4 Test Setup Diagram for EUT…

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

Report No.: RFBDKG-WTW-P25040022 Page No. 1 / 69 Report Format Version: 7.2.0 Reference No.: BDKG-WTW-P25040022 TEST REPORT CERTIFICATE OF CONFORMITY Standard: 47 CFR FCC Part 15, Subpart C (Section 15.247) Report No.: RFBDKG-WTW-P25040022 FCC ID: JNZMR0121 Product: Wireless Mouse Brand: Logitech, logi, logitech Model No.: MR0121 Received Date: 2025/10/29 Test Date: 2025/11/10 ~ 2025/12/3 Issued Date: 2025/12/18 Applicant: Logitech Far East Ltd. Address: #2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan FCC Registration / Designation Number: 723255 / TW2022 Approved by: , Date: 2025/12/18 Wen Yu / Assistant Manager This test report consists of 69 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The test results in the report only apply to the tested sample. The test results in this report are traceable to the national or international standards. Prepared by: Vito Lung / Specialist This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our- business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Report No.: RFBDKG-WTW-P25040022 Page No. 2 / 69 Report Format Version: 7.2.0 Reference No.: BDKG-WTW-P25040022 Table of Contents Release Control Record ....................................................................................................................................................... 4 1 Certificate .................................................................................................................................................................... 5 2 Summary of Test Results .......................................................................................................................................... 6 2.1 Measurement Uncertainty ........................................................................................................................................ 6 2.2 Supplementary Information ...................................................................................................................................... 6 3 General Information ................................................................................................................................................... 7 3.1 General Description .................................................................................................................................................. 7 3.2 Antenna Description of EUT ..................................................................................................................................... 7 3.3 Channel List .............................................................................................................................................................. 8 3.4 Test Mode Applicability and Tested Channel Detail .................................................................................................. 9 3.5 Duty Cycle of Test Signal ........................................................................................................................................ 10 3.6 Test Program Used and Operation Descriptions .................................................................................................... 12 3.7 Connection Diagram of EUT and Peripheral Devices ............................................................................................ 12 3.8 Configuration of Peripheral Devices and Cable Connections ................................................................................ 13 4 Test Instruments ...................................................................................................................................................... 14 4.1 RF Output Power .................................................................................................................................................... 14 4.2 Power Spectral Density .......................................................................................................................................... 14 4.3 6 dB Bandwidth ............................................................................…

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