Dual Mode Connection: Mechanical keyboard supports both wired USB and wireless Bluetooth dual mode connection, free to choose, detachable USB cable, more convenient to use. 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 keystroke. 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. Mini Size: One handed mechanical keyboard operation is simple, convenient and easy to get started, mini size and portable, effectively save desktop space.