Welcome, you are looking at a great piece.This is the Electro-Harmonix Nano Metal Muff Electric Guitar Effect Pedal.The EHX Nano Metal Muff was built for the player who demands nothing less than hard-hitting distortion and an intense, aggressive sound. It’s a combination of weaponized distortion and an extremely powerful EQ section that provides all the flexibility and tone-shaping needed to dial in an array of ultra-heavy sounds.The Nano Metal Muff’s newly designed noise gate is a superb addition to this high-gain pedal and eliminates unwanted hum when you stop playing. It features a noise floor threshold control (GATE) and its own LED to indicate when the gate is engaged.A compact footprint and intelligent, straight forward controls complete the picture.– Voiced for the heavy metal player– Compact, pedalboard friendly footprint– Extensive EQ control: Bass +/- 14dB of cut or boost, Mid +/- 15dB and Treble +/- 10dB– VOL (volume) sets the pedal’s output volume level– DIST adjusts input gain and distortion– Noise gate eliminates unwanted noise and includes an LED to indicate when the output signal is mutedWe are an authorized Electro-Harmonix dealer. Don’t pass this by!