V4P-GM840MECHANICAL KEYBOARD

Dongguan Newmen Electronics Technology Co., Ltd Keyboard Instructions GM840 1 Functions and electronic principles of new products 1.1 Scheme Description: BYK916+BK3632 Wired/Bluetooth dual-mode RGB keyboard, full keys without impact Bluetooth supports memory of three devices, built-in lithium battery (2000mAh), Type-C interface connection 1.2 FN Shortcut Key Function Description： FN+ ← → ↓ ↑ \| TAB(3S) Slow down the light Speed up the lights Dim the lights Turn up the lights Light effect switching Wired/wireless switch FN+ Right Shift WIN Blank Q W E Restoring factory defaults Lock/unlock WIN Switch the color of the light Bluetooth device 1 Bluetooth device 2 Bluetooth device 3 FN+ Enter F1 F2 F3 F4 F5 ON LED My computer The home page email search calculator FN+ F6 F7 F8 F9 F10 F11 Player Play/pause The last song The next song volume- volume+ FN+ F12 O P ALT R PRTSC SCRLK mute Pause INS APP 2.4G WIN MAC Dongguan Newmen Electronics Technology Co., Ltd 1.3 Function Description： ① Bluetooth alignment: In wireless mode, long press any combination of FN+Q/W/E for 3 seconds to enter the alignment state (for example, if you press FN+Q, the Q indicator will flash quickly and save it under FN+Q after successful connection) ② Device switching: In wireless mode, press FN+Q/W/E/R to switch between three Bluetooth devices and one 2.4G device ③ Name of Bluetooth device: GM840 BT 3.0 / GM840 BT 5.0 ④ Name of the wired device: Newmen Bluetooth Keyboard, VID: 12C9 PID: 6004 ⑤ Wired and wireless switch: Hold down FN+TAB for 3 seconds to switch mode ⑥ TAB key indicator: red - wired mode, blue - wireless mode, blinking after the switch is successful ⑦ "FN" key indicator: keyboard low power, FN indicator flashing red ⑧ Eight light effect: five light speed adjustment, four brightness adjustment, light effect includes: drift, key ripples, rainbow roulette, sine wave, stream, stars, RGB diffusion, rotating storm, horse, flower rich, serpentine horse, interspersed to run, stay change, off, on, breathing mode, neon, snow without trace, trigger ⑨ Working current ≤200mA (luminous state) ⑩ Wireless: No luminescence Working current ≤18mA 5min Standby current ≤1mA 30min hibernation current ≤0.5mA ⑪ Capitalization indicator: The capitalization function is on and the CAP key indicator is on ⑫ Code alignment: In wireless mode, switch FN+R to 2.4G mode, hold down FN+R for 3 seconds to enter code alignment, the green indicator blinks Dongguan Newmen Electronics Technology Co., Ltd quickly, and the code alignment succeeds (the keyboard must be close to the receiver). FCC Statement: 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. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Note: 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 or more 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Dongguan Newmen Electronics Technology Co., Ltd 2022-12-02 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize DongGuan Anci Electronic Technology Co., Ltd. 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). This agreement expires one year from the current date. Sincerely, Geroge He Manager Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China

Dongguan Newmen Electronics Technology Co., Ltd 2022-12-02 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT Name: MECHANICAL KEYBOARD /Model: GM840 /FCC ID: V4P-GM840) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Block Diagram ,Operational Description,Schematics) required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Geroge He Manager Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China

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ANT

RF EXPOSURE EVALUATION EUT Specification EUT MECHANICAL KEYBOARD Model Number GM840 FCC ID V4P-GM840 Antenna gain (Max) 2.24dBi Operation Frequency 2403-2480MHz ( 2.4G) 2402-2480MHz (BT) Input Rating DC 5V, Battery 3.7V Classification Per Stipulated Test Standard §15.247(i), §2.1093 Kind of Device: Bluetooth Ver. 5.0 Modulation GFSK Max. output power 2.2dBm(0.0017W) ( 2.4G) -1.04dBm(0.0008W) (BT) Test Requirement: According to §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. One antenna is available for the EUT. The minimum separation distance is 5mm. 2.4G DTS: BT DSS: Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR 2402 GFSK -1.04 -1±1 0 0.309968 3 2441 GFSK -1.37 -1±1 0 0.312474 3 2480 GFSK -2.17 -2±1 -1 0.250182 3 According to KDB 447498, no stand-alone required for BT antenna, and no simultaneous SAR measurement is required. Signature: Tiger Xu Date: 2022-11-12 Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR 2403 GFSK 2.2 2±1 3 0.618596 3 2441 GFSK 2.11 2±1 3 0.623468 3 2480 GFSK 2.16 2±1 3 0.628428 3

Shenzhen Beiying Technology Co., LTD Shenzhen Beiying Technology Co., LTD Shenzhen Beiying Technology Co., LTD Shenzhen Beiying Technology Co., LTD Shenzhen Beiying Technology Co., LTD

TRF No.: 01-R001-3A-2.4G TRF Originator: GTG TRF Date: 2022-06-29 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT FCC PART 15 SUBPART C REQUIREMENT OF MECHANICAL KEYBOARD Model No.: GM840 Trademark: N/A FCC ID: V4P-GM840 Report No.: E01A22100574F00103 Issue Date: November 24, 2022 Prepared for Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China Prepared by Dong Guan Anci Electronic Technology Co., Ltd. 1-2 Floor, Building A, No.11, Headquarters 2 Road, Songshan, Lake Hi-tech Industrial Development Zone, Dongguan City, Guangdong Pr., China. This report shall not be reproduced, except in full, without the written approval of Dong Guan Anci Electronic Technology Co., Ltd. 1 of 50 Report No.: E01A22100574F00103 TRF No.: 01-R001-3A-2.4G Global Testing , Great Quality. VERIFICATION OF COMPLIANCE Applicant: Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China Manufacturer: Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China Product Description: MECHANICAL KEYBOARD Trade Mark: N/A Model Number: GM840 We hereby certify that: The above equipment was tested by Dong Guan Anci Electronic Technology Co., Ltd. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.247(2022). Date of Test : November 07, 2022 to November 15, 2022 Prepared by : Duke Liu/Editor Reviewer & Authorized Signer : Tiger Xu/ Supervisor 2 of 50 Report No.: E01A22100574F00103 TRF No.: 01-R001-3A-2.4G Global Testing , Great Quality. Modified Information Version Summary Revision Date Report No. Ver.1.0 Original Report / E01A22100574F00103 3 of 50 Report No.: E01A22100574F00103 TRF No.: 01-R001-3A-2.4G Global Testing , Great Quality. Table of Contents 1. GENERAL INFORMATION ............................................................................................................ 5 1.1 PRODUCT DESCRIPTION .............................................................................................................. 5 1.2 TEST METHODOLOGY .................................................................................................................. 5 2. TEST FACILITY ................................................................................................................................ 6 3. DESCRIPTION OF TEST MODES ................................................................................................ 7 4. SUMMARY OF TEST RESULTS ................................................................................................... 9 6DB BANDWIDTH MEASUREMENT ............................................................................................... 9 5. TEST SYSTEM UNCERTAINTY .................................................................................................. 10 6. CONDUCTED EMISSIONS TEST ............................................................................................... 11 6.1MEASUREMENT PROCEDURE: ..................................................................................................... 11 6.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................. 11 6.3MEASUREMENT EQUIPMENT USED: ............................................................................................. 11 6.4 CONDUCTED EMISSION LIMIT ..................................................................................................... 11 6.5 MEASUREMENT RESULT: ........................................................................................................... 11 7. RADIATED EMISSION TEST ....................................................................................................... 15 7.1MEASUREMENT PROCEDURE ...................................................................................................... 15 7.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................. 17 7.3MEASUREMENT EQUIPMENT USED: ............................................................................................. 18 7.4 RADIATED EMISSION LIMIT .......................................................................................................... 19 7.5 MEASUREMENT RESULT .......................................................................................................... 20 7.6 RADIATED MEASUREMENT PHOTOS: ........................................................................................... 26 8. 6DB BANDWIDTH MEASUREMENT ......................................................................................... 27 8.1MEASUREMENT PROCEDURE ...................................................................................................... 27 8.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................. 27 8.3 MEASUREMENT EQUIPMENT USED: ............................................................................................ 27 8.4 LIMIT ........................................................................................................................................ 27 8.5MEASUREMENT RESULTS: .......................................................................................................... 27 9. MAXIMUM PEAK OUTPUT POWER TEST .............................................................................. 28 9.1MEASUREMENT PROCEDURE ...................................................................................................... 30 9.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ......…

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