R6Y-VMCEvoluent VerticalMouse Classic

925 Linden Ave. Unit C, South San Francisco, CA 94080, USA [email protected] Tel: +1 650 871 1365 CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 09/05/2025 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: R6Y-VMC Evoluent (“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. Evoluent (“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. Evoluent (“the applicant”) certifies that the equipment does not use Kaspersky's software information. Sincerely, Jack Lo / Manager Evoluent 925 Linden Ave., Unit C, South San Francisco, CA 94080 USA TEL: +1 650 871 1365 Email: [email protected]

925 Linden Ave. Unit C, South San Francisco, CA 94080, USA [email protected] Tel: +1 650 871 1365 Attestation Letter for Agent 2025/09/05 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911 (d)(7) Filing FCC ID: R6Y-VMC Evoluent certifies that, as of the date of the filing of the application, Evoluent is our designated U.S. agent for service of process for the above referenced FCC ID: R6Y-VMC agrees to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Evoluent accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company name: Evoluent Address: 925 Linden Ave., Unit C, South San Francisco, CA 94080 USA FRN: 0022203194 Contact person: Jack Lo Tel: +1 650 871 1365 Email: [email protected] Sincerely yours, Applicant Name Evoluent Applicant Printed Name Jack Lo Applicant Signature

925 Linden Ave. Unit C, South San Francisco, CA 94080, USA [email protected] Tel: +1 650 871 1365 QA-FR-170-B 7/29/2014 FCC Authorization 09/05/2025 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Evoluent the undersigned, Hereby authorizes Bay Area Compliance Laboratories Corp. (Linkou Laboratory) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. (Linkou Laboratory) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Jack Lo / Manager Evoluent 925 Linden Ave., Unit C, South San Francisco, CA 94080 USA TEL: +1 650 871 1365 Email: [email protected]

925 Linden Ave. Unit C, South San Francisco, CA 94080, USA [email protected] Tel: +1 650 871 1365 QA-FR-171-A FCC Confidential Authorization 09/05/2025 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: R6Y-VMC In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Evoluent hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Jack Lo / Manager Evoluent 925 Linden Ave., Unit C, South San Francisco, CA 94080 USA TEL: +1 650 871 1365 Email: [email protected]

Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 1 of 4 External Photographs Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 2 of 4 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 3 of 4 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 4 of 4 ***** END *****

Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 1 of 7 Internal Photographs Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 2 of 7 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 3 of 7 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 4 of 7 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 5 of 7 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 6 of 7 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 7 of 7 Antenna RF Chip ***** END *****

Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 1 of 9 FCC Part 1.1310 RF Exposure Evaluation REPORT For FCC ID：R6Y-VMC Model：VMC Report Type：Original Report Product Name：Evoluent VerticalMouse Classic Report Number：RXZ250822066SA01 Report Date：2025-09-01 Prepared By：Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) 70, Lane 169, Sec. 2, Datong Road, Xizhi Dist., New Taipei City 221, Taiwan, R.O.C. Tel：+886 (2)2647 6898 Fax：+886 (2)2647 6895 www.bacl.com.tw Facilities：The test site used by Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) to collect test data is located on 70, Lane 169, Sec. 2, Datong Road, Xizhi Dist., New Taipei City 221, Taiwan, R.O.C. Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) No.: RXZ250822066SA01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 2 of 9 Statement of Compliance Applicant (Certification Holder) Evoluent 925 Linden Ave., Unit C, South San Francisco, CA 94080 USA Brand (Trade) Name Evoluent Product (Equipment) Name Evoluent VerticalMouse Classic Model Name VMC Series Model Name N/A Model Discrepancy N/A Measurement Procedures and Standards Used: ☒ FCC Part 2.1093 ☒ FCC Part 1.1310 The measurement results in this report were performed at Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. The determination of the test results does not require consideration of the uncertainty of the measurement, unless the assessment is required by customer agreement, regulation or standard document specification. Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) is not responsible for the authenticity of the information provided by the applicant that affects the test results. Report Issued Date：2025-09-01 Reviewed By：Anson Lu Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) No.: RXZ250822066SA01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 3 of 9 Revision History Revision No. Report Number Issue Date Description Author/ Revised by 0.0 RXZ250822066 RXZ250822066SA01 2025.08.31 Original Report Anson Lu Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) No.: RXZ250822066SA01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 4 of 9 TABLE OF CONTENTS 1. General Information ............................................................................................................................. 5 2. RF Output Power Evaluation .............................................................................................................. 6 3. FCC §1.1310 - RF Exposure ................................................................................................................. 7 4. RF Exposure Evaluation Result ........................................................................................................... 9 Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) No.: RXZ250822066SA01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 5 of 9 1. General Information Product Description for Equipment under Test (EUT) Product Name Evoluent VerticalMouse Classic Frequency Range BLE(1M/2M)：2402 ~ 2480 MHz SRD：2402 ~ 2480 MHz EIRP Tune-Up Power (dBm) BLE(1M)：0.40 dBm BLE(2M)：0.40 dBm SRD：4.00 dBm Modulation Technique BLE(1M/2M)：GFSK SRD：GFSK Antenna Specification PCB Antenna Gain：-0.07 dBi Received Date 2025/07/28 *All measurement and test data in this report was gathered from production sample serial number: RLK250724098-2 (Assigned by BACL (New Taipei Laboratory)). Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) No.: RXZ250822066SA01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 6 of 9 2. RF Output Power Evaluation Please refer to RF report No：RLK250724098RF01. RF Conducted Output Power Table： Channel Frequency (MHz) Conducted Peak Output Power (dBm) Antenna Gain (dBi) EIRP Power (dBm) BLE(1M) Mode Low 2402 0.37 -0.07 0.300 Middle 2440 0.28 -0.07 0.210 High 2480 0.06 -0.07 -0.01 BLE(2M) Mode Low 2402 0.39 -0.07 0.320 Middle 2440 0.28 -0.07 0.210 High 2480 0.12 -0.07 0.050 SRD Mode Low 2402 3.64 -0.07 3.570 Middle 2440 3.19 -0.07 3.120 High 2480 2.78 -0.07 2.710 Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) No.: RXZ250822066SA01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 7 of 9 3. FCC §1.1310 - RF Exposure Applicable Standard According to subpart §1.1310 (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). §1.1310 (d)(2) For operations within the frequency range of 300 kHz and 6 GHz (inclusive), the limits for maximum permissible exposure (MPE), derived from whole-body SAR limits and listed in Table 1 in paragraph (e)(1) of this section, may be used instead of whole-body SAR limits as set forth in paragraphs (a) through (c) of this section to evaluate the environmental impact of human exposure to RF radiation as specified in § 1.1307(b) of this part, except for portable devices as d…

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Antenna Spec Model : Evoluent VMC Antenna Manufacture : YoFree Technology Co., LTD. Antenna Type: PCB Date of Issue : Mar 15, 2025 Prepared by: YoFree Technology Co., LTD. 5 F., No. 753, Zhongzheng Rd., Zhonghe Dist., New Taipei City 235602, Taiwan (R.O.C.) Tel ：+886-2-2221-7301 #11 E-MAIL: [email protected] 1. Antenna Dimensions Unit=mm 2. Test uncertainty The uncertainty was calculated on the basis of the GUM published by ISO, using the nclusion factor of K=2 and the 95% confidence level to express the extendeduncertainty. 3. VSWR parameters 4.VSWR data Typical free space efficiency and gain 5.Radiation pattern 2410.0MHz Total(E1-XZ), Max= -2.37dBi 2410.0MHz Total(E2-YZ), Max= -1.84dBi Total(H-XY), Max= -0.99dBi, CirD=18.16 2410.0MHz H+V, Eff: 28.3% Back View ------------------------------------- End ---------------------------------------------

Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 1 of 70 FCC Part 15.247 RSS-247, ISSUE 3, August 2023 RSS-GEN, ISSUE 5, February 2021 Amendment 2 TEST REPORT For Evoluent 925 Linden Ave., Unit C, South San Francisco, CA 94080 USA FCC ID: R6Y-VMC IC: 10500A-VMC Report Type: Original Report Product Type: Evoluent VerticalMouse Classic Report Producer : Jojo Lu Report Number : RLK250724098RF01 Report Date : 2025-09-05 Reviewed By: Rory Cheng Prepared By: Bay Area Compliance Laboratories Corp. (Linkou Laboratory) No. 6, Wende 2Rd., Guishan Dist., Taoyuan City 33382, Taiwan (R.O.C.) Tel: +886 (3)3961072 Fax: +886 (3) 3961027 www.baclcorp.com.tw Bay Area Compliance Laboratories Corp. (Linkou Laboratory) No.: RLK250724098RF01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 2 of 70 Revision History Revision No. Report Number Issue Date Description Author/ Revised by 0.0 RLK250724098 RLK250724098RF01 2025-09-05 Original Report Jojo Lu Bay Area Compliance Laboratories Corp. (Linkou Laboratory) No.: RLK250724098RF01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (New Taipei Laboratory) Page 3 of 70 TABLE OF CONTENTS 1 General Information ....................................................................................................... 5 1.1 Product Description for Equipment under Test (EUT) .......................................................... 5 1.2 Objective ................................................................................................................................ 5 1.3 Test Methodology .................................................................................................................. 5 1.4 Statement ............................................................................................................................... 6 1.5 Measurement Uncertainty ...................................................................................................... 6 1.6 Environmental Conditions ..................................................................................................... 7 1.7 Test Facility ........................................................................................................................... 7 2 System Test Configuration ............................................................................................. 8 2.1 Description of Test Configuration ......................................................................................... 8 2.2 Equipment Modifications....................................................................................................... 8 2.3 EUT Exercise Software.......................................................................................................... 8 2.4 Support Equipment List and Details ...................................................................................... 8 2.5 External Cable List and Details ............................................................................................. 9 2.6 Test Mode .............................................................................................................................. 9 2.7 Block Diagram of Test Setup ................................................................................................. 9 2.8 Duty Cycle ........................................................................................................................... 12 3 Summary of Test Results .............................................................................................. 15 4 Test Equipment List and Details ................................................................................. 16 5 FCC §15.203 & RSS-GEN §6.8 – Antenna Requirements ........................................ 17 5.1 Applicable Standard ............................................................................................................. 17 5.2 Antenna Information ............................................................................................................ 17 6 FCC §15.207(a) & RSS-GEN §8.8 – AC Line Conducted Emissions ....................... 18 6.1 Applicable Standard ............................................................................................................. 18 6.2 EUT Setup ............................................................................................................................ 18 6.3 EMI Test Receiver Setup ..................................................................................................... 19 6.4 Test Procedure ..................................................................................................................... 19 6.5 Corrected Factor & Over Limit Calculation ........................................................................ 19 6.6 Test Results .......................................................................................................................... 19 7 FCC §15.209, §15.205, §15.247(d) & RSS-247 §5.5, RSS-GEN §8.9, §8.10 – Spurious Emissions ............................................................................................................................... 20 7.1 Applicable Standard ............................................................................................................. 20 7.2 EUT Setup ............................................................................................................................ 22 7.3 EMI Test Receiver & Spectrum Analyzer Setup ................................................................. 24 7.4 Test Procedure ..................................................................................................................... 24 7.5 Corrected Factor & Margin Calculation .…

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Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 1 of 4 EUT Setup Photographs Radiated Emission (Below 30MHz)： BLE SRD Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 2 of 4 Radiated Emission (Below 1GHz)： BLE SRD Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 3 of 4 Radiated Emission (1GHz~18GHz)： BLE SRD Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK250724098 Page 4 of 4 Radiated Emission (18GHz~26.5GHz)： BLE SRD ***** END *****