JNZMR0139Wireless Mouse

#2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Date: 2026-05-27 FCC ID: JNZMR0139 To the attention of Federal Communications Commission Authorization and Evaluation Division Declaration letter for label requirement The label is permanent affixed in the battery compartment, and the EUT will be selling to market without the battery installed. The users can see the label during the battery installation process. 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: [5/27/2026] FCC ID: JNZMR0139 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: 5/27/2026 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: JNZMR0139 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: 5/27/2026 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: JNZMR0139 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: 2026-05-27 FCC ID: JNZMR0139 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 asoutlined 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]

LOGITECH FAR EAST LTD. #2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. Date: 2026-05-27 FCC ID: JNZMR0139 AUTHORIZATION LETTER To Whom It May Concern: LOGITECH FAR EAST LTD. hereby authorizes Andrea Hsia / Assistant Manager 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 Andrea Hsia / Assistant Manager 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]

LOGITECH FAR EAST LTD. #2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C. A U T H O R I Z A T I O N L E T T E R 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: +886-3-5778241 #2189 E-mail: [email protected] Date: 2024-07-01

FCC ID : JNZMR0139 IC : 4418A-MR0139 LABEL & Label LOCATION The label will be permanently affixed at a conspicuous location on the device. BATTERY CAGE

Report No.: MFBDKG-WTW-P26050067 Page No. 1 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P26050067 RF EXPOSURE REPORT CERTIFICATE OF CONFORMITY FCC Rule Part: FCC Part 2 (Section 2.1093) Report No.: MFBDKG-WTW-P26050067 FCC ID: JNZMR0139 Product: Wireless Mouse Brand: Logitech, logi, logitech Model No.: MR0139 Received Date: 2026/5/6 Test Date: 2026/5/20 Issued Date: 2026/6/5 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: 2026/6/5 May Chen / 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 : Phoenix Huang / 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-P26050067 Page No. 2 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P26050067 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-P26050067 Page No. 3 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P26050067 Release Control Record Issue No. Description Date Issued MFBDKG-WTW-P26050067 Original release. 2026/6/5 Report No.: MFBDKG-WTW-P26050067 Page No. 4 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P26050067 1 Certificate Product: Wireless Mouse Brand: Logitech, logi, logitech Test Model: MR0139 Sample Status: Engineering sample Applicant: Logitech Far East Ltd. Test Date: 2026/5/20 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-P26050067 Page No. 5 / 9 Report Format Version: 7.1.0 Reference No.: BDKG-WTW-P26050067 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 of tissue …

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Report No: EVT-700-006574 Page 1 of 13 Logitech Antenna Under Test (AUT) Report Model Name: MR0139 Equipment Type: Wireless Mouse Manufacturer: Logitech Technology (Suzhou) Co., Ltd Test Location: Suzhou, China No.3 Song Shan Road, New District Tested by: Meg zhang Report Date: 2026.05.06 Report No: EVT-700-006574 Page 2 of 13 Report Release History Report version Description Date Issued MR0139 AUT Report Original release 2026/05/06 Table of Contents 1. EUT Antenna Information 3 2. Measured Values and Calculation of Antenna Gains 3 3. Conducted Power Measurement 4 3.1 Test Setup 4 3.2 Test Instruments 4 3.3 Test Procedure 4 3.4 Test Result of RF conducted Power 4 4. 2D Radiation Pattern Measurement 6 4.1 Test Location 6 4.2 Description of the anechoic chamber 6 4.3 Test Instruments 6 4.4 Test Procedure 7 4.5 Test Setup photos 8 4.6 2D Pattern Test Plot 10 Report No: EVT-700-006574 Page 3 of 13 1. EUT Antenna Information 1) Antenna Material：PCB on board 2) Antenna Type：Printed Monopole Antenna 3) Antenna Dimension: 25 x 7 mm 4) Operating Frequency：2.4 GHz - 2.4835 GHz 5) Input Impedance：50 Ω 6) Standing-Wave Ratio：2:1 2. Measured Values and Calculation of Antenna Gains Measure peak horizontal/vertical EIRP on each x-y, y-z, x-z plane. The highest measured values will be used to calculate the antenna peak gain. Antenna Peak Gain (dBi) = Max EIRP(dBm) - Conducted Power (dBm) Frequenc y X-Y Plane 휙휙=0~360⁰, 휃휃=90⁰ X-Z Plane 휙휙=0⁰, 휃휃=0~360⁰ Y-Z Plane 휙휙=90⁰, 휃휃=0~360⁰ Max Peak EIRP (dBm) Conducte d Power (dBm) Antenna Peak Gain (dBi) Ver. Peak EIRP (dBm) Hori. Peak EIRP (dBm) Ver. Peak EIRP (dBm ) Hori. Peak EIRP (dBm) Ver. Peak EIRP (dBm) Hori. Peak EIRP (dBm) 2402 -1.77 7.98 1.39 2.10 5.02 -2.48 7.98 6.79 1.19 2440 0.96 8.11 0.28 3.21 6.24 -0.81 8.11 6.86 1.25 2480 -0.48 6.28 -1.35 3.91 5.40 -0.39 6.28 6.73 -0.45 Test Date: 2026.05.06 Report No: EVT-700-006574 Page 4 of 13 3. Conducted Power Measurement 3.1 Test Setup 3.2 Test Instruments Description Model No. Serial No. Last Calibration Spectrum Analyzer Keysight N9020B MY60110508 2025.7.4 RF signal cable Woken Huber+suhner 10844497 276 2026.1.28 Note: The calibration interval of the above test instruments is 12 months 3.3 Test Procedure A spectrum analyzer or Power meter was used to perform output power measurement, setting the detector to average and configuring EUT continuously transmitting power(100% duty cycle). 3.4 Test Result of RF conducted Power Frequency Conducted Power (dBm) 2402 6.79 2440 6.86 Report No: EVT-700-006574 Page 5 of 13 Frequency Conducted Power (dBm) 2480 6.73 Test Date: 2026.04.30 Report No: EVT-700-006574 Page 6 of 13 4. 2D Radiation Pattern Measurement 4.1 Test Location 2D radiation pattern measurement in Logitech China SZ 2.4GHz FAC anechoic chamber. 4.2 Description of the anechoic chamber Chamber specification Length: 5.0m Width: 2.8m Height: 2.8m Turntable height: 1.4m Measurement antenna height: 1.4m Block diagram to show the chamber and test equipment. 4.3 Test Instruments Description Model No. Serial No. Last Calibration Spectrum Analyzer N9010A MY49061163 2025.7.4 Report No: EVT-700-006574 Page 7 of 13 Keysight Horn Antenna ETS BBHA 9120 D(1201) D69250 2026.01.28 RF signal cable SUCOFLEX104 SN293270/4 2026.01.28 Software FAC-Radio Measurement System Version 1.1.0.7 N/A Turntable controller BJ3AC-100 N/A 2026.01.28 LNA LN1G11 321282 2026.01.28 Note: The calibration interval of the above test instruments is 12 months 4.4 Test Procedure i. Connect the EUT to Spectrum Analyzer and record the power setting of EUT and the measured conducted power. ii. Fasten the EUT in the center of the turntable, record the coordinates and take pictures. iii. Configuring EUT continuously transmitting power(100% duty cycle). iv. Make sure the transmit signal is stable and at the maximum RF power level. v. Setup the channel power function by spectrum analyzer. vi. Read the channel power level on the spectrum analyzer and record in the following positions. 1. The turntable is then stepped between 0 to 360 degrees along the horizontal plane in 15-degree increments. 2. Data is recorded using the spectrum analyzer for both theta and phi polarizations at each position. vii. Rotate the EUT with 90 degrees and repeat step f.1 and step f.2 until all 3 planes(X-Y,X-Z,Y-Z) were measured. viii. According to substitution techniques, a substitution horn antenna is substituted for EUT at the same position and the signal generator exports the CW signal to the substitution antenna via a TX cable. Rotated the turntable and moved the receiving antenna to find the maximum radiation power. Adjust output power level of S.G to get a value of spectrum reading equal to “Raw Value'' gotten from step vii. Record the power level of S.G. EIRP = P SigGen + G T – L C Report No: EVT-700-006574 Page 8 of 13 where: P SigGen = power setting of the signal generator that produces the same received power reading as the DUT, in dBm; G T = gain of the substitute antenna, in dBd (ERP) or dBi (EIRP); L C = signal loss in the cable connecting the signal generator to the substitute antenna, in dB ix. Antenna Peak Gain (dBi) = Max EIRP(dBm) - Conducted Power (dBm) 4.6 2D Pattern Test Plot X-Y Plane: Horizontal X-Y Plane: Vertical Report No: EVT-700-006574 Page 9 of 13 X-Z Plane: Horizontal Report No: EVT-700-006574 Page 10 of 13 X-Z Plane: Vertical Report No: EVT-700-006574 Page 11 of 13 Y-Z Plane: Horizontal Report No: EVT-700-006574 Page 12 of 13 Y-Z Plane: Vertical Report No: EVT-700-006574 Page 13 of 13

Report No.: RFBDKG-WTW-P26050067 Page No. 1 / 62 Report Format Version: 7.2.0 Reference No.: BDKG-WTW-P26050067 TEST REPORT CERTIFICATE OF CONFORMITY Standard: 47 CFR FCC Part 15, Subpart C (Section 15.247) Report No.: RFBDKG-WTW-P26050067 FCC ID: JNZMR0139 Product: Wireless Mouse Brand: Logitech, logi, logitech Model No.: MR0139 Received Date: 2026/4/13 Test Date: 2026/4/13 ~ 2026/5/19 Issued Date: 2026/6/5 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: 2026/6/5 May Chen / Manager This test report consists of 62 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 : Phoenix Huang / 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-P26050067 Page No. 2 / 62 Report Format Version: 7.2.0 Reference No.: BDKG-WTW-P26050067 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 ..................................................................................................................................... 8 3.3 Channel List .............................................................................................................................................................. 9 3.4 Test Mode Applicability and Tested Channel Detail ................................................................................................ 10 3.5 Duty Cycle of Test Signal........................................................................................................................................ 11 3.6 Test Program Used and Operation Descriptions .................................................................................................... 13 3.7 Connection Diagram of EUT and Peripheral Devices ............................................................................................ 13 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 .......................................................................................…

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