Andoer ENO TC-18 Fuzz Guitar Effect Pedal True Bypass Perfectly imitate tone of Big Muff. Magnalium alloy housing, good durability. Mini size, compact and space-saving. Durable jacks and foot switch. True bypass design, minimizes tone loss and get more control of your pedal. Designed with on / off LED, instructs effects or bypass status. 3 adjustable knobs: volume, tone, sustain. DC 9V adapter power supply.