The M-Audio SP-1 is a simple, compact and sturdy sustain pedal for today"s electronic keyboards. The SP-1 is perfect for any application that requires a non-latching momentary switch. It is compatible with all electronic keyboards. m Audio SP-1 Features Sustain foot pedal or FS controller For synthesizers, tone modules, and drum machines Compatible with all electronic keyboards 5-foot cable with 1/4-inch phone plug