Customize buttons to achieve keyboard functions, mouse functions, multimedia functions, character string functions, gaming functions, and macro definition functions. USB Wired + 2.4G Wireless dual-mode connection, easy to switch as per your needs. Designed with mechanical blue switches, featuring a strong paragraph sense and crisp sound. The keycap curve follows ergonomic design for comfortable typing. With anti-slip pads on the bottom, you don't need to worry about the keyboard sliding. This product provides system-based key definition software, which can be used in the system after setup. (Note: If using Linux or Mac, you need to set it up first, then connect the foot pedal to your device and run it to use it). Wide application, suitable for office, gaming, multimedia, etc. Note: The one-click open/start function cannot be used in wireless mode. Type: Mini Keyboard Model: MK321G Number of Keys: 3 Connection Mode: USB + 2.4G Wireless Mechanical Switch: Blue Switch Interface Type: Type-C Lifespan: 50 million times Working Voltage/Current: 5V@15mA Download Address for Setup Software: https://..cn/certificate?_l=zh_CN User Manual: You need to download and install the settings on your computer first. To change the key value, you must first connect to the computer with a cable and use the software to change it, then pair the device with 2.4G to use it. Color: White Material: ABS Package Contents: 1 x Keyboard 1 x Data Cable 1 x 2.4G Receiver 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 to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.