Produce endless feedback and sustain by simply pressing down the pedal; works at any volume and no huge and loud amp stacks needed This BEHRINGER product has been designed to compete head to head with leading products on the market Additional distortion circuit to give you super-thick and hard distortion with great dynamic response Dedicated Overtone, Distortion, Tone and Level controls for awesome sound shaping Status LED for effect on/off and battery check Runs on 9 V battery or the BEHRINGER PSU-SB DC power supply (not included) First-class electronic On/Off switch for highest signal integrity in bypass mode High-quality components and exceptionally rugged construction ensure long life.