The Vintage Flanger has four knobs to control Speed, Depth, Pre-delay and Feedback, plus a dual speed mode that is foot-switchable. 

The flanger offers plenty of versatility; there are no hard and fast rules for how to use it -- you can simply plug it in and start playing. As with all of the Vintage pedals, this flanger is encased in a solid, die-cast housing with the cool CM graphics and chicken-head knobs. It can be powered by a 9V battery or, for optimal performance, a regulated 9V power supply such as the CM Big John.