Designed to work and feel just like an acoustic piano's sustain pedal, it has a specially-designed rubber bottom that grips the floor and won't move while you play. This classic-style pedal works with any Alesis digital piano, keyboard or MIDI controller and it also has a polarity switch for compatibility with virtually all other branded keyboards. Features: Classic and durable design with authentic piano style feelHardwired 6' (1.82m) cable with 1/4" (6.35mm) connectorPolarity switch for compat