The Danelectro FAB Chorus Guitar Effects Pedal is a great way to fatten your rhythms and add character to your leads. Dano does it on a shoestring with the Danelectro FAB chorus. Full controls include mix, speed, depth, and effect on/off foot button. The FAB Chorus pedal"s cool retro-futuristic design is small and tough with a rubber base. Runs on 9V battery or optional 9V DC adapter.Mix, speed, and depth controls Rugged and sharp design Large, springy button 9V operation, battery (not included) or optional adapter Rubber base