Supports up to 12-digit display! This desktop calculator is easy for anyone to use, with a large, easy-to-read LCD screen and large, easy-to-press buttons. The large keys prevent input errors, and the design is user-friendly for seniors. It is equipped with essential functions useful for everyday life, such as addition, subtraction, multiplication, division, MRC memory, and percentage calculations. The solar power system eliminates the need for battery replacement, and there's no need to worry about the battery running out in a bright place. Furthermore, it has an "auto power off" function that automatically turns off the power after approximately 8 minutes of inactivity, conserving energy. 【Product Information】 Manufacturer: Kakusee (KAKUSEE) Model Number: KD-922 Color: Gray Size: Approximately Width 135mm × Depth 186mm This is an easy-to-see and easy-to-use standard calculator, recommended for home, office, and school use.