Used M-Audio MIDI Keyboard, model "Ozone". 2 octaves of large sized keys. Keyboard only, no cables or plugs. I did plug in the keyboard and the power came on, but did not test the audio output. All keys feel good. In overall good condition, probably was used in gigging - a couple scuffs, the ozone label is peeling off, and two rubber pads missing from bottom. Priced keeping all this in mind!