Rockett Pedals Allan Holdsworth Signature OD/Boost, e-guitar effect pedal, Overdrive/Boost, controls for: Gain, Volume, Boost, Bass and Treble, Low/High Emphasis switch, 3 Boost modes (Fat/Clean/Treble), battery operation possible, 9V DC power supply (center negativ) is required, both not included, dimensions (l x w x h): 12 x 7,5 x 6 cm, weight: 592 g