Features: 1.Bring You Convenience: This is a 12 key programmable keyboard with adjustment knob, you can set the shortcut keys to reduce the cumbersome process. 2.Multifunction: The mini keyboard with multi functions, you can set all the key functions on the for Windows keyboard, and realize complicated and complex shortcut keys with one key. 3.Memory Function: The keyboard has a storage function, which can be used on systems that support usb protocol such as for Linux, for OS X, etc. after setting it up on the for Windows system. 4.Settable Knob: The knob can also be set, with functions such as, play the previous song, the next song, volume up, volume down, pause, play and other functions. 5.Portable and Easy to Use: Type C to USB interface, no need for drivers, plug and play, no conflict between the computer and multiple keyboards, convenient and easy to carry. 6.Wide Application: Programmable keyboard is suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields Specification: Item Type: Macro Mechanical Keyboard_x000D_ Material: Acrylic, PCB_x000D_ Usage: Suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields_x000D_ System Support: For Windows, for VISTA, for Linux, for OS X_x000D_ Button Life: Up to 50 Million Times_x000D_ Type: Dustproof Green Shaft_x000D_ Quantity of Keys: 12 Keys_x000D_ Size: Approx. 132 x 77 x 38mm / 5.2 x 3 x 1.5in (L x W x H)_x000D_ Current and Voltage: DC 5V/1A_x000D_ Working Temperature: -10-50 PackageList: 1 x Keyboard 1 x USB Cable Note: This software can only be run on for Windows system temporarily, try to download it on the PC side of the computer, the setting software does not need to be installed, it can be run directly after opening it, and it will be automatically stored on the chain disk after setting, and then plug it into the USB protocol that supports the USB protocol. Use on for Linux, for OS X and other systems (the first time you run it, pay attention to the release of antivirus software and set it as a trusted file)!