BETAVIBE PEDALE CHORUS/VIBRATO The Betavibe accurately emulates the unique hypnotizing Doppler effect of a real rotating speaker cabinet, recreating the late 60's/early 70's psychedelic swirl that many players find elusive - like that dripping Phase-Chorused tone that made Jimi's background sounds so epic. The unit includes a "Fast/Slow" switch which gradually speeds up or slows down the speed like a real Leslie unit. A midi socket is included for external control. All in one AC powered pedal!