Use this foot switch to replace any keyboard shortcuts or key combinations to control your computer easily and quickly. It can be used for playing games, factory control, instrument control, etc. Use the USB foot switch to control your computer with any foot. It corresponds to a standard HID USB keyboard. Pre-program key or key functions onto the foot pedal using software. Allows connecting more than one switch to your computer via USB ports. You can achieve multi-key shortcut functionality. Compatible with Dos / Windows 2000 / XP / Vista/Win 7, , Linux. Dimensions (L x W x H): . 4 x 2.5 x 1.5 inches / 10 x 6 x 4 cm. Cable Length: . 67 inches / 170 cm. Material: Plastic. Package Contents: 1 pc Foot Switch, 1 x CD. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3 cm.