This keyboard is in nice used vintage condition! Everything is tested and working! There is no ac adapter, so I used batteries. It fired right up and worked. When I took the batteries out I noticed a tiny bit of corrosion on one of the coils, so I cleaned it. Other than a few cosmetic surface marks, there are no defects. Comes with one COM cartridge. No books included. See pics for condition and measurements! Smoke free home.