Xotic AH Booster Allen Hinds signature pedal; Effect pedal for electric guitar; The AH Booster pedal features:, - A versatile overdrive pedal with 3 different compression settings, - Internal DIP switches to dial in treble and presence character, - Touch responsive overdrive, - True bypass switching, - 18 volts compatibility for more headroom; controls: gain, treble, volume, bass; switch: compressor switch; LED: effect on; footswitch: effect bypass; connections: Input (6.3mm jack), output (6.3mm jack); Mains adapter connection: Hollow plug socket 5.5 x 2.1 mm, negative pole inside; Power supply with a 9 V battery or a 9 / 18 V DC mains adapter (not included); suitable optional mains adapter: Art.