Yamaha PSR-1700 in a nice hybrid case with sheet music stand. Powers on, volume goes up and down, I tried it on a few different settings, and it worked and made different sounds. I am no expert on  if you want me to try something, let me know. I included a few photos showing the screen and lights work. Piano has some scuffs but no cracks or breaks. The case latches and shuts well. Amy questions just ask. The whole package is large and heavy. Shipping will reflect this.