The Daphon Delay E20DL is a highly tweakable delay pedal that can produce some amazing delay effects. Everything from short slap-back delay sounds from long swelling echos, this pedal can do it. With the WIDTH and the REPEAT knobs turned all the way clockwise, you can really get some crazy swells when you tweak the DELAY time knob. Great pedal for the price! Features an extra heavy duty metal enclosure with a rubber underside to prevent sliding. Operates with either a 9 volt battery (included) or a standard 9 volt DC negative tip 'barrel' type adapter.