Preowned Electro-Harmonix POG2 Polyphonic Octave Generator in very good condition. Features 5 mixable polyphonic octave harmonies, effects mix (attack, LP filter, and detune), and includes 8 programmable presets with instant recall. In very good condition, showing a few slight marks to the casing and has Velcro stuck to the bottom. 9V DC power supply not included.