1、2 Knobs: This programmable keypad provides 2 knobs that can be set to zoom in and out, following song, the volume up, volume down, pause, play and other functions. 2、Programmable Design: All keys of this mini gaming keypad are programmable, you can set all keys function of standard for Win keyboard. 3、RGB Backlit: This gaming keypad is designed with RGB backlit. Blue switch provides better typing and use experience. 4、Plug and Play: This mini mechanical keypad is plug and play. This keypad and another keyboard can be simultaneously connected to one computer, no mutual interference will occur. 5、Widely Used: This 12 key keypad is suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields. Great helper for designers, video editors and many other types of users.