Designed in conjunction with indie pedal builder Analog Man, the MXR Duke of Tone Overdrive is for players who want to add a touch of warmth and grit to their rig while allowing the natural tone and feel of their high-end gear to shine. This product is powered by the Dunlop ECB003 9-volt adapter or an MXR® BrickTM Series power supply. This pedal cannot be powered by a battery.