FCC ID: 2A4MQ-RK68 Mechanical keyboard

Wired mode and charging bluetooth connection Backlight contrl Backlight control method WINDOWS Multimedia key Windows modeFN+ACut Windows MAC Multmedia eky MAC OSFN+sCUT MAC OSMAC OS AND ALT Key seap RK68 keyboard Power on/off Switch to the B turn on the power NUM CAPS There are three pairs of Bluetooth code indicators:

Q is red,W is blue,and E is green When charging,the red light is on,after full, the redlight goes out,Low voltage,blue light keeps flashing Short pressFN+Q/W/E/bluetooth Long press FN+Q/W/E/In pairing Backlight model Toggle backlight color(RGB) Backlight brightness+

Backlight brightness-

Backlight speed+

Backlight speed-

Factoty reseet Press 3 Choose a set of backight Press Home Enter backlit mode My Computer Previous Press Home Preess Fn+Home Save backlit recording mode Press the button that you want to record the backlight Explorer Mailbox Calculator Player Play/pause Next Mute Volume-

Voluem+

System requirement Bluetooth mode bluetooth3.0,bluetooth5.1 or a later version of the devicer PC:Windows 7 or higher Mac:macos X 10.6 Snow Leopard or higher iosiPad/iphone 5 or higher Android:5.0 or higher Previous Play/pause Mute Mute Volume-

Voluem+

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 not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment The devices has been evaluated to meet general RF exposure requirement the device can be used in portable exposure condition without estriction

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. C5266091_X10_Ed.2 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for Confidentiality FCC ID: 2A4MQ-RK68 To Whom It May Concern, Date: 22 Feb, 2022 Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality No No No No No NOTE 1 NOTE 1 No No Short-Term Confidentiality NOTE 2 No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. special conditions

(See II. LONG-TERM Above mentioned document contains detailed system and equipment description are the equipment. The public considered as proprietary information in operation of disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. short-term Confidentiality, the applicant requests the exhibits selected In case of above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. 1/1 C5266091_X10_Ed.2 It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Zhang chong ling Title:Mannager 1/1

C5266091_X8_Ed.1 Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Letter of 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: RK68,RK G68, RK68 Three mode, RK68 double mode, RK68pro, RK855, RK837, RK-G68 Three mode,RK837 Three mode,KB498L, HG68, GH-68, Noir N1, Lanparty BT, KB860L, OZtactical, KB852CM, OZtacticalUS, Noir N1 Pro, Naga 68, ZK10, ROOKY 68BT FCC Identifier: 2A4MQ-RK68 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. is allowed to forward all Name: Zhang chong ling Date: 22 Feb, 2022 Title:Mannager Signature of applicant:

1/1

Model difference declaration letter Differences Description We Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. state:

Product Mechanical keyboard Model Name RK68,RK G68, RK68 Three mode, RK68 double mode, RK68pro, RK855, RK837, RK-G68 Three mode,RK837 Three mode,KB498L, HG68, GH-68, Noir N1, Lanparty BT, KB860L, OZtactical, KB852CM, OZtacticalUS, Noir N1 Pro, Naga 68, ZK10, ROOKY 68BT The above product with same circuit, PCB layout, electrical parts, materials and the materials of decorative accessories is wiring structures, Appearance shape, same, only different color. Signatory Date: 02-22.2022

<Signature>

NameZhang chong ling TitleManager CompanyJingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Address: No. 8 Minying 1 Road, Yuanzhou Town, Boluo County, Huizhou City, Guangdong Province, China