Used Korg PA800 in excellent shape and working condition. Everything works great. Upgraded to 256 Mb RAM memory, never OS, to load more samples. Include 8gb HD but it can be upgraded up to 1 TB easy to instal. You will receive manual,AC cord, CD.Dual MP3 player is optional and not included with package.This keyboard was used in smoke free home.  If you need more info let me know or visit korg website. Thank you.