★Equipped with a polarity switching switch, this sustain pedal is compatible with a wide range of models! The SP-2 is a piano-style foot pedal ideal for users who want realistic pedal action. Its unlatching design (the pedal is on only while pressed) allows it to be used as a sustain (damper) pedal, and the polarity switch allows it to be used with MIDI devices from all manufacturers, including M-Audio. The rubber-coated underside is specially designed to prevent slippage even during performance. Sustain pedals may have different polarities depending on the manufacturer. For this reason, if you use an incompatible product, the normal situation will be "holding the pedal down = sound will continue to play." However, M-AUDIO's sustain pedal has a polarity switch, so it is compatible with products of either polarity type, making it an excellent product! Main features of the SP-2: Classic design functions as a sustain (damper) pedal, etc. Unlatching type (only on while the pedal is pressed) Equipped with a polarity switch, it can be used with MIDI devices from all manufacturers, including M-Audio. 1/4-inch cable included (approximately 1.8 meters). Durable and sturdy design with rubberized and chrome pedals *Half pedals are not supported.