PRDMU146DUAL MODE CONTOUR MOUSE STONE

Silent Bluetooth Mouse OWNER'S GUIDE Ver.1.0 FCC ID：PRDMU146 CAUTION: To use this product properly, please read the user's guide before installing. 1 Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Radiation Exposure Statement: The product comply with the FCC portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation as described in this manual. The further RF exposure reduction can be achieved if the product can be kept as far as possible from the user body or set the device to lower output power if such function is available. 2 Functional Introduction 1. Left button 7. Nano Receiver 2. Right button 8. Battery Cover 3. Scrolling Wheel 9. Connect Button 4. Forward 10 ON / OFF Switch 5. Backward 11 2.4G / BT1 / BT2 Switch 6. DPI Switch button & LED Indicator Forward Press this button to view the next page in your Internet browser Backward Press this button to view the previous page in your Internet browser DPI Switch The LED indicator will light up when you plug the mouse into the USB port. The brightness of the indicator indicates the DPI setting in use. a) 5 adjustable DPI settings. The number of blinks indicates the DPI setting in use DPI # of Blinks 800 dpi 1 1000 dpi 2 1600 dpi 3 2400 dpi 4 3600 dpi 5 3 b) The default setting is 1600 DPI. You can easily switch between DPI settings. Battery and Power Management: Step 1: Take the battery cover off. Step 2: Insert the battery as shown inside the battery compartment. Step 3: Replace the cover. Step 4: Turn on power switch **Warning: *Please insert the battery with the correct position according to the instruction labeled on the mouse. Switch Connection Channel Connect via USB nano receiver 1.Plug nano receiver into the USB A port on your computer 2.Mouse switch to 2.4G mode and press Connect Button P u ll AA Batte ry USB BT1 BT2 4 3. In 2.4G mode, the indicator light turns off once pairing is successful. If pairing is not established, the light will blink for 10 seconds and then turn off.” Connect via Bluetooth in windows 1.On your PC, select Start > Settings > Bluetooth & devices > Turn on Bluetooth > Add device > Bluetooth. 2.Mouse switch to BT mode and press Connect Button. 3.Find ” ST-MOUSE-1 or ST-MOUSE-2” and press connect. 4.In Bluetooth mode, the indicator light turns off once pairing is successful. If pairing is not established, the light will blink for 10 seconds and then turn off.” Swift pair 1.On your PC, select Start > Settings > Bluetooth & devices > View more devices > Turn on the Show notifications to connect using Swift Pair. 2. Mouse switch to BT mode and press Connect Button. 3. Windows will show a notification ” ST-MOUSE-1 or ST-MOUSE-2” and Selecting “Connect” starts pairing. Remark: Each time the mode is switched, the indicator light will turn on for 2 seconds and then turn off.” *2.4G Mode Red LED is on for 10 Sec. Power ON Red LED Blinking Pairing(LED OFF when paired or failed after 10 Sec Red LED Blinking for 10 Sec Low battery Warning LED Indicator 5 Connect via Bluetooth in Mac 1.Click on “Apple menu” (top left corner of your screen). 2.Go to System Preferences-> Bluetooth-> Turn Bluetooth on to set up Bluetooth device and find ” ST-MOUSE-1 or ST-MOUSE-2” press connect. Power saving features: To conserve the battery power, the mouse offers power management functions as below: The mouse goes into “Saving Mode” after inactivity. There may be a slight delay while the mouse re-establishes Bluetooth connection from power saving or sleeping mode. *Low Battery Warning: At startup, the light blinks for 10 seconds (once per second) and then turns off. During operation, it continues blinking. When the device stops working, the light turns off after 10 seconds.” Establishing a Bluetooth Connection The Bluetooth mouse can work in any Bluetooth environment. Before connecting your Bluetooth mouse with your computer, make sure your computer has a working Bluetooth configuration with Human Interface Device (HID) profile. If your computer does not support Bluetooth, you need to obtain and install a commercially available Bluetooth dongle which converts your computer to a Bluetooth environment. * Bluetooth Mode Red LED is on for 10 sec. Power ON Red LED Blinking Pairing(LED OFF when paired or failed after 10 min Red LED Blinking for 10 Sec Low battery Warning LED Indicator 6 Troubleshooting A. Mouse does not work upon installation or is not detected Try one or more of the following:  Make sure the ba…

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Acrox Technologies Co., Ltd. Covered Equipment Certification Attestation Letter 3/25/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: PRDMU146 Acrox Technologies Co., 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Acrox Technologies Co., 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Acrox Technologies Co., Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Gavin Hsieh Title: Product Manager Company Name: Acrox Technologies Co., Ltd. Date: 3/25/2026

Acrox Technologies Co., Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 3/25/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: PRDMU146 FRN of applicant: 0018333633 Per section 2.911(d)(7) of the FCC rules, Acrox Technologies Co., Ltd. (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: 1PerfectChoice, Inc. FCC Registration Number (FRN): 0033429309 Physical U.S. Company Address: 21908 Valley Blvd., Walnut, CA 91789 Contact Person: Choon Kek Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant accepts 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. Applicant Signed: Agent Signed (if different from Applicant): Signed: Signed: Printed name: Gavin Hsieh Printed name: Choon Kek Title: Product Manager Title: Chief Operating Officer Company Name: Acrox Technologies Co., Ltd. Company Name: 1PerfectChoice, Inc. Date: 3/25/2026 Date: 3/25/2026

DATE : 3/25/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint EST Technology Co., Ltd. Address:Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Acrox Technologies Co., Ltd. Address:4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan <Signature> Name：Gavin Hsieh Title：Product Manager Applicant Company：Acrox Technologies Co., Ltd.

DATE : 3/25/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, <Signature> Name：Gavin Hsieh Title：Product Manager Company：Acrox Technologies Co., Ltd.

DATE : 3/25/2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: PRDMU146 Product Name: DUAL MODE CONTOUR MOUSE STONE Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name：Gavin Hsieh Title：Product Manager Company：Acrox Technologies Co., Ltd.

Acrox Technologies Co., Ltd. I, the undersigned, Gavin Hsieh: The following models have the same technical construction including circuit diagram, PCB Layout, components and component layout, all electrical construction and mechanical construction, except the different model number. 1) Model No.: ST63684 2) Model No.: ST63685 3) Model No.: ST63686 4) Model No.: ST63687 5) Model No.: ST63688 6) Model No.: B34 FCC ID: PRDMU146 Sincerely, Client’s signature : Client’s name / title : Gavin Hsieh / Product Manager Contact information / address : 4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan Telephone: 886-2-2796-5888 Fax No.: 886-2-2793-8999

External Photos M/N: ST63684 External Photos M/N: ST63684 External Photos M/N: ST63684

DUAL MODE CONTOUR MOUSE STONE Model: ST63687 Input: 1.5V 30mA FCC ID: PRDMU146 S/N: YYMM000001 Made in Vietnam 35.6 mm 15.6 mm This device complies with part 15 of the FCC rules, Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Label Location

Internal Photos M/N: ST63684 Internal Photos M/N: ST63684 Internal Photos M/N: ST63684 Antenna

Page 1 of 3 Report No. ESTE-R2602113 FCC RF EXPOSURE REPORT Acrox Technologies Co., Ltd. DUAL MODE CONTOUR MOUSE STONE Model Number: ST63684 Additional Model: ST63685, ST63686, ST63687, ST63688, B34 FCC ID: PRDMU146 Applicant: Acrox Technologies Co., Ltd. Address: 4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2602113 Date of Test: Jan. 22, 2026 to Feb. 07, 2026 Date of Report: Feb. 24, 2026 Page 2 of 3 Report No. ESTE-R2602113 1. Applicable Standards FCC Part 2(Section 2.1093) FCC KDB 447498 D04 Interim General RF Exposure Guidance v01 2. Exposure Evaluation of Portable or Mobile Devices Human exposure to RF emissions from portable devices (47 CFR §2.1093), as defined by the FCC, must be evaluated with respect to the FCC-adopted limits for SAR. Evaluation of mobile devices, as defined by the FCC, may also be performed with respect to SAR limits, but in such cases it is usually simpler and more cost-effective to evaluate compliance with respect to field strength or power density limits. For certain devices that are designed to be used in both mobile and portable configurations similar to those described in 47 CFR §2.1091(d)(4), such as certain desktop phones and wireless modem modules, compliance for mobile configurations is also satisfied when the same device is evaluated for SAR compliance in portable configurations. The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 300 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Page 3 of 3 Report No. ESTE-R2602113 3. Evaluation Results Mode CH Peak Output Power (dBm) Antenna Gain (dBi) Effective Radiated Power (dBm) Target Power (dBm) Max. Target Power (mW) SAR Test Exemption Limit (mW) BLE 1M 2402 -2.43 -0.43 -5.01 -5±1 0.398 2.72 2440 -0.93 -0.43 -3.51 -3±1 0.631 2.72 2480 -1.43 -0.43 -4.01 -4±1 0.501 2.72 For 2.4G SRD Field strength = 76.10dBuV/m@3m P={ [10 (76.10/20) /10 6 *3] 2 /30 }*1000mW =0.0122mW< 2.72mW Note: 1. Limited=3060*(0.5/20)^x, x=-log(60/(3060*√f)). 2. We choose f=2.48GHz (Highest frequency operate at bluetooth) to calculate MPE limit as higher frequency will have lower MPE limits. 3. SAR Test Exclusion Thresholds is 2.72mW for separation distance 5mm. Therefore, SAR test is not required. End of Test Report

Page 1 of 17 Report No.ESTE-R2602111 Appendix A: DTS Bandwidth Test Result Test Mode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.621 2401.691 2402.312 0.5 PASS BLE_1M Ant1 2440 0.573 2439.709 2440.282 0.5 PASS BLE_1M Ant1 2480 0.615 2479.697 2480.312 0.5 PASS Page 2 of 17 Report No.ESTE-R2602111 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 3 of 17 Report No.ESTE-R2602111 Page 4 of 17 Report No.ESTE-R2602111 Appendix B: Maximum conducted output power Test Result Peak Test Mode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict BLE_1M Ant1 2402 -2.43 ≤30 PASS BLE_1M Ant1 2440 -0.93 ≤30 PASS BLE_1M Ant1 2480 -1.43 ≤30 PASS Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Page 5 of 17 Report No.ESTE-R2602111 BLE_1M-Ant1-2480-PASS Page 6 of 17 Report No.ESTE-R2602111 Appendix C: Maximum power spectral density Test Result Test Mode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 -16.52 ≤8.00 PASS BLE_1M Ant1 2440 -14.20 ≤8.00 PASS BLE_1M Ant1 2480 -15.71 ≤8.00 PASS Page 7 of 17 Report No.ESTE-R2602111 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 8 of 17 Report No.ESTE-R2602111 Page 9 of 17 Report No.ESTE-R2602111 Appendix D: Reference level measurement Test Result Test Mode Antenna Freq(MHz) Max.Point[MHz] Result[dBm] BLE_1M Ant1 2402 2401.99 -2.67 BLE_1M Ant1 2440 2439.99 -1.71 BLE_1M Ant1 2480 2479.90 -2.40 Page 10 of 17 Report No.ESTE-R2602111 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 11 of 17 Report No.ESTE-R2602111 Page 12 of 17 Report No.ESTE-R2602111 Appendix E: Band edge measurements Test Result Test Mode Antenna Ch Name Frequency [MHz] Ref Level[dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 Low 2402 -2.67 -40.26 ≤-22.67 PASS BLE_1M Ant1 High 2480 -2.40 -39.91 ≤-22.40 PASS Page 13 of 17 Report No.ESTE-R2602111 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS Page 14 of 17 Report No.ESTE-R2602111 Appendix F: Conducted Spurious Emission Test Result Test Mode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 2402 30~26500 -2.67 -42.06 ≤-22.67 PASS BLE_1M Ant1 2440 30~26500 -1.71 -41.38 ≤-21.71 PASS BLE_1M Ant1 2480 30~26500 -2.40 -41.99 ≤-22.40 PASS Page 15 of 17 Report No.ESTE-R2602111 Test Graphs BLE_1M-Ant1-2402-30~26500-PASS BLE_1M-Ant1-2440-30~26500-PASS BLE_1M-Ant1-2480-30~26500-PASS Page 16 of 17 Report No.ESTE-R2602111 Page 17 of 17 Report No.ESTE-R2602111 Appendix G: Duty Cycle Test Result Test Mode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] BLE_1M Ant1 2440 20.00 20.00 100 0.00 Test Graphs NTNV-BLE_1M-Ant1-2440

Page 1 of 40 Report No.ESTE-R2602111 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Acrox Technologies Co., Ltd. DUAL MODE CONTOUR MOUSE STONE Model Number: ST63684 Additional Model: ST63685, ST63686, ST63687, ST63688, B34 FCC ID: PRDMU146 Applicant: Acrox Technologies Co., Ltd. Address: 4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2602111 Date of Test: Jan. 22, 2026 to Feb. 07, 2026 Date of Report: Feb. 24, 2026 Page 2 of 40 Report No.ESTE-R2602111 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software ...................................................................................................... 9 2.8. Duty Cycle .......................................................................................................................................... 9 2.9. Channel List ..................................................................................................................................... 10 2.10. Test Equipment List ...................................................................................................................... 11 3. 6DB BANDWIDTH ............................................................................................................................ 12 3.1. Limit ................................................................................................................................................... 12 3.2. Test Setup ........................................................................................................................................ 12 3.3. Spectrum Analyzer Setting ............................................................................................................ 12 3.4. Test Procedure ................................................................................................................................ 12 3.5. Test Result ....................................................................................................................................... 12 4. MAXIMUM PEAK OUTPUT POWER .................................................................................................. 13 4.1. Limit ................................................................................................................................................... 13 4.2. Test Setup ........................................................................................................................................ 13 4.3. Spectrum Analyzer Setting ............................................................................................................ 13 4.4. Test Procedure ................................................................................................................................ 13 4.5. Test Result ....................................................................................................................................... 13 5. POWER SPECTRAL DENSITY .......................................................................................................... 14 5.1. Limit ................................................................................................................................................... 14 5.2. Test Setup ........................................................................................................................................ 14 5.3. Spectrum Analyzer Setting ............................................................................................................ 14 5.4. Test Procedure ................................................................................................................................ 14 5.5. Test Result ....................................................................................................................................... 14 6. CONDUCTED BAND EDGE .............................................................................................................. 15 6.1. Limit ...........................................................................................................…

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Antenna Describe 1： Antenna Describe Antenna PCB Antenna Gain -0.43 dBi Frequency Range 2.402Ghz-2.480Ghz Connector Type Direct Location of mearement(company name) SHENZHENSHIXINZHONGXIN TECHNOLOGY.CO.,LTD Model B34 2：External View Drawing Picture of antenna 3：Measurement Result 3.1 3D Pattern 3.2 1D Radiation Pattern 3.3 Gain

Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)