Henretta's Emerald Prince Preamp in a slightly larger than stock enclosure (2.2" x 2.4") with the Bright/Dark and Volume controls as external knobs. The stock pedal is a set-and -forget pedal with an internal trimpot and dip switch for these controls.
This pedal is very lightly used and we'll ship it to ya safely and swiftly in its original box! Give us a shout at the shop with any questions you may have.