Just in time for Christmas I have a used Yamaha stereo keyboard with metal legs, sheet music holder, and power supply. It will also work with batteries. I think this thing has more sounds and buttons than the space shuttle! It plays as it should, at least all the buttons I tried work. You might find more info about this machine on line, I don't know half of what it is capable of. Price is OBO and includes delivery in the Hays-Russell-Great Bend area.