1?��Programmable Keyboard: All keys of OSU gaming keyboard are programmable, all key functions of standard Win keyboard can be set, and complex combination of shortcut keys can be realized with one key. 2?��Knob Function: Not only can be rotated to adjust, but also can be used as a button. The knob can be set to zoom in and out, cut the song, increase the following volume, decrease the volume, pause, play and other functions. 3?��RGB Backlight: Small mechanical keyboard has fine workmanship, perfect style, more gaming experience, and with RGB backlight, full of technology, detachable USB cable. The keyboard is easy to operate and easy to use. 4?��Small Portable: USB mechanical keyboard mini size, effectively saves desktop space, easy to carry and use when going out to work, will not take up too much space in the bag, light and unburdened. 5?��Wide Application: 3 key small keypad is suitable for office, game, music production, media, industrial control, laboratory, production line testing and other fields, and it is a good helper for many other types of users such as designers and video editors.