The Mission EP-1 is a professional quality, all metal, single channel expression pedal. The EP-1 is compatible with a large range of digital amps, effects units, MIDI controllers and stomp boxes, and can be used anywhere you would use a Roland EV-5, M-Audio EXP, Boss FV500, or similar pedal. The EP-1 features Missions extended sweep chassis, and purpose designed sealed 10K linear potentiometer.