The Ep-3 Expression Pedal from Moog is a universal expression pedal for keyboards, synths, and pedals that have either an expression or CV input. It has a polarity switch for compatibility with non-Moog products and a scalable output knob for different musical ranges. The pedal itself is designed for smooth operation while being rugged enough for daily use and touring. A 6.5' 1/4" TRS cable is included.