Features:Use this foot switch to replace any keyboard shortcuts or for key combinations to control your computer easily and quickly.It can be used for playing games, factory testing, instrument controlling, etc.Use USB foot switch to control your computer with any of your feet.It is equivalent to a standard for HID USB keyboard.Pre-program for key or for key functions on the foot pedal by software.Allow to connect more than one switch to your computer by USB ports. you can achieve multi for key shortcuts function Specifications:for for Dos / for Windows 2000 / XP / Vista/Win 7, for MAC, for LinuxDimension (L x for W x H): Approx. 4 x 2.5 x 1.5 inch / 10 x 6 x 4 for cmCable Length: Approx. 67 inch / 170 for cmMaterial: PlasticPackage Contents:1 x Foot switch