Features: Customize the button to achieve keyboard functions, mouse functions, multimedia functions, character string functions, gaming functions, and macro definition functions. USB + 2.4G Wireless + BT4.0 three-mode connection, easily switch according to your needs. Designed with mechanical blue switches, providing strong tactile feedback and crisp keystroke sound. The button curve fits ergonomic design for comfortable typing. Anti-slip pads on the bottom prevent keyboard slipping. This product includes key definition setting software based on the Windows system, which can be used across various systems after configuration. Wide application, suitable for office, gaming, and multimedia use. (Note: If you use Linux, you must first configure it on Windows, then connect the keypad to your device to use.) Bluetooth mode: Turn on the power switch, press the pairing button, and the LED light turns red. Search and pair the USB Type-C wired keypad with your device via Bluetooth for a seamless connection. 2.4G mode: Turn on the power switch, press the connection button, and the LED light turns 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 turns light blue. The computer will automatically recognize the device without additional setup. Dual Type-C Interfaces: The front side features a power switch and a Type-C port for powering the mechanical gaming keyboard and connecting devices. An additional Type-C port on the side allows connection from different angles, offering flexibility for various placement needs during design or entertainment activities. (Note: Only one interface can be used at a time; simultaneous use is not supported.) Three modes: USB + 2.4G wireless + Bluetooth Size: 75 x 37 x 28mm Material: ABS Color: White Package Contents: 1 x Keyboard 1 x Data cable (randomly colored; specific color cannot be selected) Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.