YAMAHA MM6  Music Synthesizer contains more than 540 high-quality Voices (based on 70 MB of Wave-ROM,many of them directly borrowed from the MOTIF Series), 61 keys (Initial touch), 32 notes, Effect System: Reverb (25 types), Chorus (30 types), Variation (189 types), Master Equalizer (5 types), 8 track sequencer, Arpeggio: Preset (213 types), Pitch Bend wheel, Modulation wheel, 4 Knobs, Data dial, 320 x 240 dot graphic backlit LCD display. Dimensions: 948.5 x 374.2 x 122.8 mm (W x D x H), Weight: 5.0kg Included accessories: AC Power Adaptor, Owner?s Manual, CD-ROM (supplied DAW software)