Features 61 semi-weighted keys, Vocal synthesis with 100 preset and 50 user Lyric Tones, AiX Sound Source with 800 tones, 243 accompaniment rhythms, Backlit LCD display, 64-note polyphony, Pitch bend wheel, 3 assignable knobs, Split & layer capability, 6-track MIDI recorder, Audio sampler, and more. Since 1980, Casios mission has been to help musicians find their voice. Now, the Casiotone CT-S1000V gives your music a brand new voice: Its own. Along with 800 stunning Tones and many other features, the CT-S1000V features Vocal Synthesis technology that lets you play your lyrics in real time.