This power house of a pedal couldn't be simpler, one knob dials your volume boost from 1 to 11, which takes you from a gentle increase in volume and gain, for those subtle acoustic solos, all the way to eleven giving you as much boost as you can handle! The Bomb is also a great way to give your effects line a little added horse power to get the job done and drive your point home. Proof again, that big things definitively do come in small packages.