Two full seconds of the purest digital delay in an analog flavored decay. From tight doubling to long cycle patterns, the E1 Echo shines in performance situations... a value that will echo your brilliance. Comes with 9V DC power supply for USA 120V, optional Euro or UK power supplies available. Can use any standard boss style power supply but it draws 150mA so you should use a power supply that can provide 200mA or more, to avoid problems.