The DD-6 Digital Delay is the first BOSS delay pedal to offer true stereo delay and panning effects. Features include built-in tap tempo capability and a delay/hold time of over 5 seconds (5,200ms). A new Reverse mode makes it easy to get trippy ‘60s and ‘70s-style effects, while the newly designed Warp mode creates radical delay effects on the fly. All around, a great delay for all players alike, capable of a vast majority of delay tones. This DD-6 has spent some time on pedalboards in the past, but sounds and plays as it should. Powered by a standard 9 volt power supply or 9 volt battery.