Electro Harmonix Octavix, e-guitar stomp box, Fuzz/Octaver, contorls for: Volume, Boost and Octave, switchable from 9V to 24V (mini toggle), True Bypass, blue status LED, runs with 9V battery or 9V power supply (battery is not included), dimensions (w x h x d): 70 x 54 x 115 mm, incl. power supply (109004)