Feature: 1. Custom Function: Multi functional 3 key custom keyboard, with RGB lighting and adjustment knob, cool and convenient. Support Type‑C to USB interface, no driver needed, just plug and play. 2. Shortcuts: It can set all the key functions on the standard keyboard, one key to achieve cumbersome and complex combination of shortcut keys, and the setting can be repeated without conflict. 3. Easy Operation: The knob can enlarge and reduce the screen, switch the song, increase or decrease the volume, pause, play and other functions, is a good helper with easy operation. 4. Storage Function: The keyboard has a storage function, which can be used on systems that support usb protocols after being set up. 5. Application: Suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields, convenient and easy to carry. Specification: Item Type: Mini Shortcut KeypadMaterial: Acrylic, PCB.Application: Suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields Lighting: RGB System Support: For Windows, for VISTA, for Linux, for OS X Key Life: Up to 50 million times press Type: Dustproof blue shaft Number of Keys: 3 keys Product Size:Length: Approx. 100mm/3.94inWidth: Approx. 25mm/0.98inHeight: Approx. 38mm/1.5inCurrent Voltage: DC 5V/1A Working Temperature: -10°C-50°C Package List: 1 x Keypad1 x USB Cable Note: Tips: This software can only be run on for Windows system for the time being, try to download on the PC side of the computer, set the software without installation, open can run directly, set up after automatically stored on the chain disk, and then inserted into the support of usb protocol such as for Linux, for OS X and other systems to use (the first time to run note that the antivirus software should be released, set as a trust file)!!