The Electro-Harmonix Metal Muff is designed and built for Heavy Metal. Three powerful EQ bands sculpt the mids and 6 controls shape the sound precisely for your groove from slithering mercury to lead belly blast furnace dross. Its unique Top Boost adds serious bite with its own control knob and footswitch so you can kick it on for searing leads.

• High input impedance buffered bypass
• Output volume and master drive controls
• 3-Band EQ: bass, mid and treble
• Footswitchable Top Boost with separate control knob
• Tough and compact die-cast chassis
• 9-volt battery included