The keyboard was made by Casio for Radio Shack. The keyboard has midi in and out connections for connecting to other keyboards(instruments), computers, and recording equipment, a phone jack output for listening without disturbing the neighbors while playing, an output jack for connecting to amplifiers, and an SD memory card port for inputting your own sounds and recording to memory some of your own creations. It comes with a real nice folding stand. The keyboard is approx 49" x 16" x 4" and it weighs 22lbs. The stand (when folded) is approx 22" x 3" x 39" and it weighs 6.5lbs. Both the keyboard and stand are in a good, used condition with signs of wear on the body of the keyboard and markings on the keys. Please see the images as they are part of the description and it shows off even more great features. This does not come with the AC/DC Adapter and it takes six "D" batteries". Was tested and it plays great!