This Roland guitar pedal GR-55S Guitar Synthesizer is designed to work with electric guitars. It is a used model. It is a versatile multi-effects unit that allows guitarists to explore a wide range of sounds and tones using midi, your guitar needs a midi pickup, or the Gk3 pickup to use the sound effects of this pedal. comes in a gator case with pedal and power lead. I don't have the original packaging.
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