The Pico Pitch Fork by Electro-Harmonix is a compact pitch shifter offering 30 fully polyphonic pitch-shifting options in a small footprint. It includes 10 pitch shift intervals and three modes: Up, Down, and Dual. Controls include SHIFT for interval selection, BLEND for wet/dry mix, VOL for output volume, and SWEEP for pitch bend sweep time. The foot switch operates in Latching or Momentary mode for versatile usage.