Mooer DPS1 Pitch Step Octave PedalPITCH STEP is a polyphonic pitch shifter and harmonizer, conveniently built into a small expression pedal for real time control. The integrated features and control options make this pedal very flexible and useful for many different styles of music and applications. Pedal steel bends, whammy shifting, artificial tremolo dives, fat octave harmonies are just a few of the possibilities. Open up your expressive side with the MOOER PITCH STEP