TC Helicon Voicetone E1VOICETONE E1 Single Button Stompbox for Compelling Vocal Echo Effects Single button stompbox gives you a range of stage ready vocal echo effects in vintage to modern flavors Timed repeats of your vocal add interest at just the right moment 13 wicked delay styles, including classic slap echo Tap tempo control to keep your echoes right on the beat Simple 3 knob interface gets you up and running in seconds High quality, low noise mic preamp for pristine