The Digitech Hardwire SC-2 Valve Distortion Pedal is one of those pedals you try one time and realize the designers thought of everything. Built to last years on the road, anything that could be made of metal on this Hardwire Distortion, is. Constant Voltage through the life of the battery ensures the sound does not "sag" if the battery begins to die out. The Hardwire Valve Distortion Pedal gives you full power until the battery dies then immediately enters true bypass mode so the show can go on. Add to all that the Stomplock guard which keeps your settings from being altered when one of your groupies jumps onstage and bumps the pedal. Brilliant Digitech Hardwire Valve Distortion SC-2.