Celebrate the 20th anniversary of the collaboration between Dunlop and Zakk Wylde with the MXR Wylde Audio Overdrive. Custom built for Zakk's loud, tough, relentless riffs and leads, this muscular stomp box transforms your amp into a heavy, chunky crunch machine. A simple Output, Tone, and Gain control layout makes setup fast and easy. Powered by a 9-volt battery, a Dunlop ECB003 adapter, or an MXR Brick Series power supply.