Limited edition of the analog delay guitar effect pedal. Features: Featuring 600 ms of delay time with optional modulation, and a three-knob layout that controls Delay, Mix, and Regen. For even more tonal variety, you can adjust width and rate control of the modulation via two internal trimpots. All done by a completely analog audio path for authentic rich, warm analog delay-made possible only by old-school analog bucket brigade technology. True bypass. Powered by one 9-volt battery, a 9-volt AC Adapter such as the Dunlop ECB003/ECB003EU, or the DC BrickTM and Iso-BrickTM power supplies.