Electro-Harmonix - Pocket Metal Muff Pedal 

The Electro-Harmonix Pocket Metal Muff is the little brother of the Metal Muff family distortion pedals, it takes the most powerful features and packs them into a slick die-cast box. The Electro-Harmonix Pocket Metal Muff selects carefully the mid frequencies, wich are switch-selectable, offering powerful musical scoops. The Electro-Harmonix Pocket Metal Muff effect pedal main features include: True bypass. Switch selectable EQ range for midrange scoop control. Selectable distortion amount. Tough and compact die-cast chassis. Master volume control. Metal Power in a pedal board friendly design.