The Billionaire Big Spender gives you exquisite rotary effects, delivering crisp, luscious tone. The "Ramp" switch allows you to engage the ramp move, going up or down. If you've never used a spinning speaker/rotary effect before, this pedal is tremendous value and is a must own for any board. A hand sprayed die cast body with a high gloss finish gives you a killer look too. Powered by a 9 volt battery or AC power adaptor.