The Electro-Harmonix POG2 effect pedal is a polyphonic octave generator that enables guitarists to conjure everything from the surreal jangle of an 18-string guitar, to rich thick walls of symphonic sound. It features an attack control which enables you to fade in lush smooth swells. It also features a second sub-octave to reach deeper than ever before, a 2-pole resonant low-pass filter that includes two additional Q modes, and an enhanced detune to refine your sound even further. The guitar pedal lets you save your favorite settings, and recall them with a click. Its enhanced algorithm delivers a focused and in-the-pocket harmonic performance..