Malekko DIABOLIK Fuzz Effects Pedal w/ Patch Cables 50mA current draw 9V battery or optional 9VDC neg tip regulated power supply (not included) CLEAN : Adjusts the output level of your dry signal FUZZ :Turn this knob clockwise to set your fuzz volume SQUISH : Changes the character of the fuzz. A low setting (counterclockwise) will give the fuzz a fast attack.