Death by Audio hase decided to change the options for performing musicians and artists around the world forever. This is THE DIY secret weapon. Introducing the ECHO MASTER. The XLR in/out vocal echo pedal designed specifically for sounding awesome without relying on the house sound guy.Power: 9V (runs on standard 2.1mm negative center 9V adapter).Current Draw: 25 mA.Time: Controls the delay time. Numbers are in milliseconds. In the Red Zone, the delay chip is pushed to the extreme and becomes more and more lo-fi as the time increases.F-Back: Controls the number of repeats in the delay circuit, anywhere from one to infinite to a wall of oscillation.Mix: Controls the level of the delay line compared to the dry signal, from only dry to full volume for both.