The XK-3 Front Hinged Foot Pedal from X-keys is a computer navigation device that provides the same functionality as pressing buttons on a mouse. It is USB plug-and-play with virtually all operating systems, and also supports programming on Windows and OS X for use in custom applications.
This version is front-hinged, and is ideal for functions where momentary activation serves the task (mouse clicking for example). There is also a rear-hinged version for functions where continuous activation serves the task (transcription playback for example).