Features: 1.Programmable and Convenient: The USB foot pedal is a standard device and programmable keyboard and mouse, which triggered freely by your foot 2.Dual Mode Connection: The USB foot pedal adopts a 2 position 4 keys design, and supports 4 keys custom programming. Supports wireless and USB dual mode connections 3.Shortcut Key Setting: The USB double 2 foot switch has mouse function, keyboard function, game function, string function, multimedia function can set shortcut keys 4.Mechanical Switches: The foot pedal for transcription uses sensitive mechanical switches to provide tactile response and minimal resistance. With wide, ergonomic pedals 5.Scope of Application: Suitable for playing games, Photobooth, medicine, zooming, transcription key settings, factory testing, instrument control, hospital image scanning specification:Item Type: USB Foot Pedal Material: ABS Mouse Function: Can Be Set As Shortcut Keys Such As Left Mouse Button, Right Mouse Button, Middle Mouse Button, Forward and Backward, Etc. Keyboard Function: Shortcut Keys for Saving, Copying, Pasting, Switching Programs, and Opening Task Manager Can Be Set Game Function: Can Be Set As the Up, Down, Left and Right Buttons of the Gamepad String Function: You Can Set Up a Quick Input String, Such As "how Are You Today" Multimedia Function: You Can Set Shortcut Keys Such As Pause, Play, Previous Song, Following Song, Open My Computer, Etc. Connection Type: Wireless BT/Wired USB Number of Keys: 2 Position 4 Keys Switch Type: Mechanical Switch Battery Type: 2 x AAA Batteries (not Included) Compatible Systems: For Win, for Linux, for OS X, for Android (if It is a for Linux or for OS X system, you need to modify the key definitions in win, and then plug the switch into for Linux or for OS X to Us PackageList:1 x USBFootPedal 1 x Data Line 1 x User Manual NoteShipped Without Battery