Portable Mini 12-key Keyboard Programmable Keys Custom Shortcuts Usb Mechanical Keyboard Keypad For Computer Music Plug And Play : 12 programmable keys, One-click to achieve complicated and complex combination shortcut keys. Knob design, which can volume plus or minus, pause, play and other functions. USB interface, plug and play, no any drive needed. Mini size, easy to carry on the go. Easy to operate, no conflict when connecting multiple keyboards. Suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields. Specification: Type: mini keyboard Material: Acrylic ABS Metal Key number: 12 keys+ 2 turn-knob Size Chart: 75.5x130.6mm/2.97x5.14inch Package Includes: 1 Piece Mini Keyboard with 2 Knobs Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping