Boss OC-5, Effect Pedal for Electric Guitar, OC-2 Vintage Mode, Octave Up & extended cut-off options, Controls for Direct Level, Octave Level (+1 Oct), Octave Level (-1 Oct), Range (-2 Oct), Switch: Vintage/Poly, Input: 6.3 mm jack, Outputs direct and mono: 6.3 mm jack, Dimensions (WxDxH): 73 x 129 x 59 mm, Power supply via 9 V battery or 9 V DC power supply unit (suitable power supply unit Art.#409939#, not included in delivery)