This is a set including the main unit, original box, and instruction manual. While the original box, main unit, and instruction manual all have some dirt and scratches, etc., they are in quite good condition. The appearance is quite good. Buttons respond without issue. The LCD is dim. Sound is produced, but it's not good. The battery compartment has corrosion, though not to the point of leakage, and the contacts are poor. Some kind of repair is needed. It is working, but since it's an old item, it's being sold as junk. Please purchase only if you understand this. I have many other items for sale, so bulk purchases are welcome. Feel free to ask any questions in the comments.