BEHRINGER VINTAGE TIME MACHINE VM1 Experience true analog delay! Get up to 550 ms of organic echo to rival any tape delay, vibrant chorus and mind-bending vibrato Dedicated Delay, Chorus/Vibrato, Feedback, Mix and Level controls for awesome sound shaping Blue status LED for effect on/off and battery check True hard-wire bypass for ultimate signal integrity Runs on 9 V battery or the BEHRINGER PSU-SB DC power supply (not included)