FCC ID: 2A4MQ-RK-H81 Mechanical keyboard

PRODUCT BASIC BATTERY LEVEL REMINDER Bluetooth connection 2 . 4 G C O N N E C T I O N BACKLIGHT CONTROL BACKLIGHT RECORDING METHOD MULTIMEDIA KEYS FOR WINDOWS MULTIMEDIA KEYS FOR MAC THE SECOND COMBINATION OF FUNCTION KEYS SYSTEM REQUIREMENTS FCC COMPLIANCE STATEMENT

(USA only) FCC COMPLIANCE STATEMENT

(USA only) TYPE-C HUB Knob function OFF stands for: Wired mode G stands for : 2.4G mode B1 stands for : BT Mode Device Q B2 stands for : BT Mode Device W B3 stands for : BT Mode Device E Battery level reminder keyboard 335.8(L)142.2(W)40(H)2 81 keys Single light/RGB 1. Caps lock 2.Win lock 3. Charging indication: breathing state when charging,Always on when full, flashing at low voltage 166-86601-02 Press FN+ENTER to check the battery level for example When the backlight is on, it means the keyboard is 10% charged at this time. The backlight is on at the same time, indicating that the keyboard is at 20%

power at this time. and so on The backlight is on at the same time, indicating that the keyboard power is 100% at this time Turn the rotary switch to the B1 position,That is select the Q group BT device Turn the rotary switch to the B2 position,That is select the W group BT device Turn the rotary switch to the B3 position,That is select the E group BT device 2.4G mode: Turn the rotary switch to the 2.4G position In Windows mode (FN+A: switch to Windows system) MAC system (FN+s: switch to MAC system) MAC system Windows key and ALT key swap NoteFn+2@3#key is Fixed lighting effect, not recording Step1 Press to select a set of backlight mode Step2 Press Back Enter backlit recording mode Step4 Press Back When done, press Fn+Back again, will save and exit backlit recording mode Step3 Press the button you want to record the backlight, Repeat this step to record the backlight you want Computer Browser Mailbox Calculator Player Stop Last song Play / pause Next song Mute Volume-

Volume+

Backlight Brightness+

(only for RGB version) Switch the backlight color Backlight Brightness-

Switch Backlight Mode Backlight Speed -

Backlight Speed+

Restore to factory settings window lock Screen Brightness-

Screen Brightness+

Keyboard Backlight Brightness-

Keyboard Backlight Brightness+

Last song Play / pause Next song Mute Volume-

Volume+

Ins End ScrLk PrtSc Home switch to windows system switch to mac system 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,

(2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a ClassB 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. Warning: Changes or modifications to this unit not expressly approved by the part responsible for compliance could void the users authority to operate the equipment. FCC Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. WARNING: This product can expose you to chemicals including {name of one or more chemicals}, which is (are) known to the State of California to cause cancer and birth defects or other reproductve harm. For more information go to www.P65wamings.ca.gov. Executive standard:GB/T 14081-2010

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Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Agent Authorization Company: Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Address: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China Product Name: Mechanical keyboard Model Number(s): RK-H81,RK866,RK81,RK-H81Plus,RK-H81Pro Product Description:

Mechanical keyboard We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Name:

Zhang chuang ling Title:

Manager Date: Aug.06,2022 Company: Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd.

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID:

Date: August 6, 2022 2A4MQ-RK-H81 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual OR For 45 days, pursuant to Public Notice DA 04-1705. For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Zhang chuang ling Title: Manager

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Family models declaration letter. Date: August 6, 2022 We Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Of Product: Mechanical keyboard Model Name: RK-H81 Serial Model: RK866,RK81,RK-H81Plus,RK-H81Pro Difference description of series models:

All the model are the same circuit and RF module, except the model names and Appearance color. Thanks Sincerely Signature Name: Zhang chuang ling Date: Aug.06,2022 Title: Manager