Features: You can customize the button to achieve keyboard function, mouse function, multimedia function, character string function, game function and macro definition function. USB + 2.4G Wireless+BT4.0 three-mode connection, easy to switch according to your needs. Designed with mechanical blue switches, strong paragraph sense, crisp sound. The button curve fits ergonomic design, comfortable to type.With anti-slip pads at the bottom, no need to worry about keyboard slipping. This product provides key definition setting software based on system, which can be used in various systems after setting.Wide application, suitable for office, game, multimedia, etc.(Note: If you use Linux or for , you need to set it up on first, then plug the foot switch into your device and run it to use) Bluetooth-Compatible mode: Turn on the power switch, press the pairing button, and the LED light will turn red. The usb type c wired keypad can search and pair with the keyboard via Bluetooth-Compatible for seamless connection. 2.4G mode: Turn on the power switch, press the connection button, and the LED light will turn green. Insert the wireless adapter into the device to establish a connection. USB mode: Connect the keyboard to your computer via USB, and the LED light will turn light blue. The computer will automatically recognize the device without the need for any additional setup. Dual Type-C Interfaces: The front side features a power switch button and a Type-C port for opening the mechanical gaming keyboard and connecting devices. Additionally, there is another Type-C port on the side for users to connect from a different angle. This provides flexibility for different placement requirements during design or entertainment activities. (Note: Only one interface can be used at a time, simultaneous usage is not supported.) Three modes:USB+2.4G wireless+Bluetooth size: 75 x 37 x 28mm Material: ABS colour: white Package Contents: 1 x Keyboard 1 x Data cable(randomly colored. Cannot be chosen the specific color.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.