The Sharp Scientific Calculator EL-531XB-VL is a brand new handheld device with a regular display and key size. It features an LCD display, making it easy to read calculations. This scientific calculator is powered by batteries, making it convenient for on-the-go use. The unit comes with a cover for protection. With its reliable brand, regular size, and precise calculations, the Sharp EL-531 is a practical choice for students, professionals, and anyone in need of accurate scientific calculations. Happy to answer any questions.