Three-Leg Switch USB Upgraded 3-Key Switch Keyboard Operation Mouse Pedal : Function: With this foot keyboard, control your computer za using I is equipped with software to create any keyboard shortcut or ordinary key Professional foot switch USB: USB foot switch can connect more than one switch further to your computer Footswitch: Three-stage USB switch with pedal and large size provides flexibility for your feet for sensitive switches to Configuration: Triple USB Foot Control switch can be operated by operating software to help Ci support quick control function, simply turn on the switch Reliable quality: the foot switch is made of plastic It can withstand more than 100 kilograms and is strong and durable Specification: product: foot type Material: plastic; black size: about. 375x150x40mm/14,76x5,91x1,57 inch contains: 1-piece foot switch USB with USB