The BOSS DD-20 Digital Delay offers more User memory and long delay time up to 23 seconds. Delay time can be quickly set using the push-button knob or via tap tempo. And with a choice of 11 modes—including new “Smooth” and “Twist” delays and sound-on-sound recording—this Twin Pedal raises the bar for delay effects.
More info from Boss: https://www.boss.info/us/products/dd-20/
