Fully fonctional expect the pitch and mod wheel. Cosmetically it is in fair to good condition but functions and sounds great. Left side of the keyboard was hit so I glued the plastic parts together (As can be seen on the picture). This DX7 is equipped with a super max chip v2 which allows for a total 512 preset memory. On top of that, it adds a arpegiator and delay function and a bunch of other functionalities. Also through midi you can easily install sounds banks with your computer.