content: Danelectro DJ-20C Rocky Road Spin Speaker Mini Effects Pedal, is an amazing little pedal!I use it with guitar, and keyboards.Using with Keyboards, organ mode(doesn't matter which type) jazz, rock, gives me an instant controllable Leslie effects.it includes fast and slow ramp up,boost, volume/drive. thru a mixer in stereo you can do some amazing stuff with this inexpensive unit.The only drawback i have found is the buttons are very hard to engage and disengage.But i'm working on that. i will modify the springs if possible and maybe even send a recommendation to Danelectro.