[Multifunctional Mechanical Keyboard] The programmable macro keyboard has 6 numeric keys + 1 knob key. You can set all the functions of the standard keyboard keys, and perform complex hotkey combinations through the keys. You can also replace the keycaps and keys as needed. key shaft. Choose from 7 colors and 2 modes (gradient or light at the touch of a button) for your RGB lighting (Mode 0 - Off) - create your perfect gaming setup instantly. [Knob Settings] A single knob can achieve 3 functions. The knob can be pressed left, right, and middle to set the volume increase/decrease/mute, song previous/next/pause/play and other functions.