Wide Range of Applications: Mini keyboard is suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields, suitable for designers and video editors, etc. Knob Function: Not only can be rotated and adjusted at the same time can also be used as a button, the knob can be set to zoom in and out, up and cut the song, the following volume plus, volume minus, pause, play and other functions. Programmable: All keys of the keyboard are programmable, all key functions of the standard for Windows keyboard can be set, and complex combinations of shortcut keys can be realized with one key. Plug and Play: Keyboard wired connection, plug and play, with detachable USB cable, more convenient to use, mini size and portable. Blue Switch: You can connect a keyboard and another keyboard at the same time on the same computer, they will not interfere with each other. blue switch.