1,Bring You Convenience: This is a 12 key programmable keyboard with adjustment knob, you can set the shortcut keys to reduce the cumbersome process. 2,Multifunction: The mini keyboard with multi functions, you can set all the key functions on the for Windows keyboard, and realize complicated and complex shortcut keys with one key. 3,Memory Function: The keyboard has a storage function, which can be used on systems that support usb protocol such as for Linux, for OS X, etc. after setting it up on the for Windows system. 4,Settable Knob: The knob can also be set, with functions such as, play the previous song, the next song, volume up, volume down, pause, play and other functions. 5,Portable and Easy to Use: Type C to USB interface, no need for drivers, plug and play, no conflict between the computer and multiple keyboards, convenient and easy to carry. 6,Wide Application: Programmable keyboard is suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.