This is a VERY limited prodution pedal from Jack Deville's Mr. Black pedal company. It is capable of a lot of very nice overdrive tones with its treble and bass tonestack and has wide dynamics due to it having an internal charge pump converting a 9 volt DC input to a bi-polar +9 & -9 volts to the circuit. This one is brand new in the box so if you missed out on getting one, now's your chance to purchase this extremely rare pedal.