Only the main unit of the image, adapter, and chair are included. Accessories such as the instruction manual are not included. The year of manufacture is unknown, but there is a 2007 marking on the back of the chair. Please search for product details. Description of the junk item: The joint of the lid is broken and will not close. I was able to confirm that sound can be produced and the keys move automatically by mode conversion. Since there is no instruction manual, I cannot determine if everything is normal. Due to the above, there may be defects, so I am selling it as a junk item. For those who can repair it, for parts, or as interior decoration, how about it? Please only purchase if you understand and agree to the above! Please note that I may not be able to reply immediately. #L21