The Behringer SF300 Super Fuzz Pedal features three different sound modes for classic fuzz grunge and gain boost. Perfect for recreating the iconic fuzz tones of the 60s and 70s the Behringer SF300 offers dedicated Gain Level and 2-band EQ controls. An LED shows when the effect is activated and provides a battery check. An electronic on and off switch delivers maximum highest signal integrity in bypass mode. The SF300 operates on a 9-volt battery or the Behringer PSU-SB DC power supply.