Behringer PO300 Ultimate Power Overdrive The ultimate power overdrive pedal for fat and big overdrive sounds with the heavy low-end punch of a tube-driven 4 x 12" cabinet New type of overdrive circuit offers bigger and fuller sound with endless sustain and compression Blue status LED for effect on/off and battery check Dedicated Drive, Power, Phat and Level controls for awesome sound shaping Runs on 9 V battery or the BEHRINGER PSU-SB DC power supply (not included)