Operating System:Linux, Windows Item Weight:120 g Guaranteed software updates until:unknown Specification: Item Type: Mini Shortcut Keypad Material: 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/3.94in Width: Approx. 25mm/0.98in Height: Approx. 38mm/1.5in Current Voltage: DC 5V/1A Working Temperature: -10C-50C Package List: 1 x Keypad 1 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)!! About this item Bring You ConvenienceThis is a 3 key keyboard with adjustment knob, you can set the shortcut keys to reduce the cumbersome process. Support TypeC to USB interface, no driver needed, just plug and play. MultifunctionThe 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. Memory FunctionThe gaming keypad 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. Settable KnobThe knob can also be set, the macro keyboard with functions such as, play the previous song, the next song, volume up, volume down, pause, play and other functions. Portable and Easy to UseType C to USB interface, no need for drivers, plug and play, this one key keyboard is no conflict between the computer and multiple keyboards, convenient and easy to carry. See more product details Bring You ConvenienceThis is a 3 key keyboard with adjustment knob, you can set the shortcut keys to reduce the cumbersome process. Support TypeC to USB interface, no driver needed, just plug and play. MultifunctionThe 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. Memory FunctionThe gaming keypad 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. Settable KnobThe knob can also be set, the macro keyboard with functions such as, play the previous song, the next song, volume up, volume down, pause, play and other functions. Portable and Easy to UseType C to USB interface, no need for drivers, plug and play, this one key keyboard is no conflict between the computer and multiple keyboards, convenient and easy to carry.