The USB foot switch can be used to control your computer by foot. It is used in playing games, factory testing, controlling instruments, helping the disabled and so on. You can use it by hands or feet for efficiency Contains three programmable buttons switch.Simulate any key on keyboard, combination key, mouse and character string. Easy to use and convenient It is a new multi-function Foot switch combines a keyboard function, mouse function, string function, multimedia function, game controller functions Compatible with Dos/Windows 2000/XP/Vista/Win 7, MAC Linux (Note: MAC Snow Leopard is not available for this item)you'll need to configure the device on a Windows machine. After successful configuration, you may then use the device on your Linux,Mac or other system computer.