Disaster Transport is a uniquely voiced digital delay with foot switchable modulation. The repeats have more mids and less muffled lows than a standard delay of this nature. I would say it's somewhere in between analog and tape delay with a voice of it's own. The modulation can give you wacky, out of tune pitch bending craziness to a subtle chorus warble. This ships with a 9v battery but I advise using a regulated 9v power supply for best performance. Do not attempt to use anything higher than 9v!!