This stomp box’s Mode Switch selects between 11 distinctively different delay/delay-reverb/and straight reverb styles. Dual knobs adjust Tone, Reverb Time, Feedback and Delay Time. Dial in the amount of direct versus effect you want in your output via a separate Balance control—that’s an awesome amount of creative control! The sophisticated algorithms of our Real Sound Modeling (RSM) processor accurately emulate the fine details of real acoustic reverb and delay environments in ways you’d only hear with expensive rack mount reverbs. Other features include a really blue LED to indicate the power status and battery condition plus a robust bypass footswitch, which preserves signal integrity. Run the DR400 effects pedal on our BEHRINGER PSU-SB DC power supply or use a 9 V battery to take it anywhere.