Mini version of Morley Volume Plus measuring 6.75 inch. L x 4.5 inch. W x 2.75 inch. H. Electro-Optical circuitry and audio taper allow smooth, studio quiet volume control. Foot switchable Minimum Volume is used for a smooth transition between rhythm and lead volumes. Powers from one 9V battery or optional Morley adapter. Glow in the dark treadle rubber and toe-end logo, LED Indication, cold-rolled steel housing, quick clip battery door and one-year warranty. Features include: · Electro-Optical Volume pedal (no pots to wear out) · Consistent Audio taper allows smooth volume control or violin type swells · Switchable Minimum Volume Control - use as either a Rhythm/Lead pedals or Volume pedal with the click of a switch! · Minimum Volume knob is used for a smooth transition between rhythm and lead volumes · Powers from one 9-volt battery or optional Morley 9V adapter · Glow in the Dark Treadle Rubber and Toe-End Logo · Cold-rolled steel housing, LED indication, quick clip battery door and one-year warranty · Works with Guitar, Bass or Keys!