HQRP Sustain Pedal/FS controller is suitable for all electronic keyboards, synthesizers, tone modules or drum machines with 1/4" phone jack sustain-pedal input. The pedal is made in foot switch style and has a specially designed lower rubber part allowing the pedal to stay in place while you play.Compatible with M-Audio / Yamaha / Casio / Roland / Korg / Kurzweil Keyboards.