The GR-55 also includes Roland's world-famous COSM tone modeling. Together, these amazing processor cores open up never-before-explored realms of tone and texture shaping. From pop to rock to undiscovered genres of music, the GR-55 has the guitar tones you need to stand out. Dive in and create your own intensely intricate patches, or keep it simple and explore the hundreds of built-in tones onboard. The GR-55 has the perfect sounds of any music. On top of that, the GR-55 features an onboard USB memory music player with handy foot controls, so you can rock out with your favorite tones, long after the rest of the band's packed up. If you're ready to discover a whole new era of mind-blowing guitar tones, you're ready for the Roland GR-55!Roland GR-55 Guitar Synth System Features at a Glance:Ultra-fast tracking provides incredibly responsive synth processingColor: Black3-pedal live control plus a built-in expression/volume pedalSound Generator: PCM (2 tones), COSM Modeling (1 tone)Tones PCM: 910 typesModeling: 23 types (guitar mode), 17 types (bass mode)Effects MFX (Multi-Effects): 20 typesAMP (Preamp): 42 typesMOD (Modulation): 14 typesDELAY: 7 typesREVERB: 5 typesCHORUS: 4 typesEQ: 1 type270 x Guitar patch memory presets (plus 297 user patches)90 x Bass patch memory presets (plus 297 user patches)240 x 64 LCD display1 x 13-pin DIN GK input connector1 x 1/4" guitar output jack2 x 1/4" main outputs1 x 1/4" stereo headphone outputMIDI in and out connectors2 x USB port (computer connectivity and USB memory connector)USB Memory Audio Player File Format: WAV, AIFFSampling resolution: 24-bit/44.1kHzPower supply: DC 9VCurrent draw: 700 mADimensions (maximum measurements): 16" x 9-5/8" x 4-3/16"Weight: 7 lbs. 5 oz.Included accessories: AC adapter, owner's manual, GK-3 divided pickup, 16.4' GK cable