Looking to add some piano style sustain to your keyboard or controller? The M-AUDIO SP 2 is a traditionally styled, compact and sturdy sustain pedal specifically engineered with the modern musician and producer in mind. Featuring a conveniently located polarity switch, a heavy duty, natural feeling mechanism and an ultra portable robust design aesthetic, M-AUDIO's SP 2 universal sustain pedal is the ultimate accompaniment to your electronic keyboard, synthesiser, MIDI controller or drum machine.