The Fulltone GT500 Distortion guitar effect pedal gives you all the grungy distortion you can handle. It includes an overdrive booster as well as a discrete Field Effect Transistor (F.E.T) all in one solidly built package. The Fulltone GT500 F.E.T. gives you the freedom to control volume, overdrive, mid, bass, and highs at the same time. This allows you to let the beast out on driving pieces while providing the sensitivity to let the music ring on quieter tunes. The Fulltone overdrive pedal also includes an innovative series switch that lets you decide which effect goes into operation first. With a simple tap of your foot, load the booster or distortion function in any order you like, effectively giving you two very different sounds from the same piece of music.