The MGT-4 Footswitch is an optional
accessory item for Mustang GT100 and GT40. It's a four-button,
pedalboard-friendly unit that lets users select various presets and
effects from the floor. It also enables hands-free access to the
chromatic tuner, with colored LEDs for visual feedback. Perhaps most
importantly, the MGT-4 footswitch unlocks Mustang GT's 60-second looper
functionality, with buttons to activate "Record," "Play," "Overdub" and
"Stop" functions. Removable 12' cable with 1/4" plugs included.