CASIO ELECTRIC KEYBOARD. RUNS ON AIR CONDITIONING ADAPTER OR BATTERIES. I CURRENTLY USE A MULTIPLUG ADAPTER FOR IT.ALSO RUNS OFF BATTERIES. TERRIFIC CONDITION, PLAYS AND SOUNDS GREAT. SOME LIGHT COSMETIC/SURFACE SCUFFS. MAKE A CREDIBLE OFFER. IT'S 1 OF THE LARGE ONES WITH THE LARGE LIST OF BUILT IN MUSIC/BEATS AND HAS A NICE SELECTION OF PORTS/JACKS IN THE BACK TO PLUG IN MANY EXTRAS. PICS ARE ...