This item features a shooting game where you shoot down invading numbers by matching them. It also has a tax calculation function that easily calculates prices including and excluding consumption tax. It uses a two-way power system that combines solar and auxiliary batteries. The main body size is approximately 118.5mm deep x 70mm wide x 8.5mm high, and the weight is approximately 60g, making it a notebook type. Stored at home. There is some creasing in the pocket area on the right side when opened. A part of the instruction manual was stained, so that part has been cut out. Please check the photos above. Thank you for your understanding and consideration.