great sounding korg c-15s concert piano 88 keys (a0 to c8) 5 voices: piano, electric piano, harpsichord, vibes, pipe organ polyphony: 16 note keyboard modes: single, layer (midi multi) controls: power, volume, key transpose, pitch connections: headphones, aux in (l,r), aux out (l,r), midi i/o main amplifier: 30w x 2 speaker: 16cm x 2 power supply: ac, local voltage power consumption: 45w color and grain: black walnut dimensions: 54.4(w) x 18.3(d) x 32.1(h) in. weight: approx. 100 lbs. *only the unit itself and power cord included.....selling as is $750 obo