Features: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.Specification:Color: GreyInput: 0.25in monaural jack (impedance: 1M Ohms)Output: 0.25in monaural jack (impedance: 100k Ohms)Power requirements: AC adapter 9V DCCurrent draw: 5mAProduct size: 9.1 * 3.6 * 5 cm / 3.6 * 1.4 * 2inProduct weight: 138g / 4.9ozPackage size: 10 * 4.8 * 5.7cm / 3.9 * 1.9 * 2.2inPackage weight: 156g / 5.5ozPackage List:1 * Fuzz pedal1 * User manual (English)