Everybody from Joe Walsh to Peter Frampton has used this fantastic effect, now you can have the same effect in a simpler, more economical form. It"s wild, it"s groovy, it"s cool, it"s so retro it hurts! No need for an external mic or for connecting to the back of the amp. This little unit does it all.New mic-free, plug and play technology Groovy retro look Great price