Roland GR-55 Guitar Synthesizer Black with GK-3 Divided Pickup and 1 Year Free Extended Warranty A revolutionary fusion of guitar synthesis and powerful COSM guitar modeling Up to four sound sources at a time: two PCM synth tones, plus COSM guitar modeling and normal guitar input Easy to use and easy to play with hundreds of great, ready-to-use sounds for rock or pop guitarists Advanced Roland technology provides superb sound quality and lightning-fast processing Over 900 of Roland's latest fully editable PCM sounds, including pianos, organs, strings, vintage synths, and much more