Guitar Effects Processor Pedal GT-1PREMIUM TONE FOR PLAYERS ON THE GO Ultra portable and easy to use, the GT 1 delivers pro level tones everywhere you play. Driven by the powerful BOSS GT series engine, it gives you access to a huge selection of world class amps and effects for all types of music. A streamlined interface enables quick and intuitive sound creation, while an assignable control switch and expression pedal provide dynamic real time effects adjustment. And by connecting to