FCC ID: 2A4MQ-RKROUND Mechanical keyboard

Wired (long press for 3 seconds to turn off / turn on)

Press and hold for 3 seconds to start the machine

Long press Bluetooth 1 for three seconds Long press Bluetooth 2 for three seconds Long press Bluetooth 3 for three seconds Press and hold for 3 seconds to start the machine 2 4G2 4G2 4G2 4G2 4G2 4G2 4G2 4G 2.4G Long press 2.4G for three seconds. At this time, the P Key flashes rapidly, indicating that it has entered the pairing state. Slow flashing indicates that the keyboard is in the back connection state 166-83801-01 After the USB is plugged in, it flashes three times to be in the charging state.After it is fully charged, it flashes five times. When the voltage is low, the Fn key flashes At this time, the Q key LED flashes, indicating that the pairing state has been entered At this time, the W key LED flashes, indicating that the pairing state has been entered At this time, the e key LED flashes, indicating that the pairing state has been entered

FCC COMPLIANCE STATEMENT FCC COMPLIANCE STATEMENT

space bar

1 2 3 4 5

1 2 Wired (long press for 3 seconds to turn off / turn on) 2.4G Bluetooth 2 Bluetooth 1 3 4 5 Bluetooth 3 1 2 3 4 5

1 Last song 2 Play / pause 3 Next song 4 Volume-

5 Volume+

1 2 3 4 5

1 Player 2 Stop 3 Computer 4 Mute 5 Calculator 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. 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. 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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Model:RK Round Rating:5V == 200mA BSN XXXXXX FCC ID:2A4MQ-RKROUND uk FE CE KX &

www.rkgaming.com Madein China a_ 9.4128mm_ |

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 Round,RK838 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: Jul.14,2022 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: 2A4MQ-RKROUND Date: July 15, 2022 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 For 45 days, pursuant to Public Notice DA 04-1705. OR 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: July 15, 2022 We Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Of Product: Mechanical keyboard Model Name: RK Round Serial Model: RK838 Difference description of series models:

All models different of product names and Appearance color, other are same. Thanks Sincerely Signature Name: Zhang chuang ling Date: Jul.14,2022 Title: Manager