Handheld calculator features a large 8-digit LCD screen, rubber keys, transparent housing and a compact size. The large 14mm display digits are easy on the eyes. Ergonomic shape with easy-grip contours fits comfortably in your hands. Compact size fits perfectly in a pocket or purse. Functions include percent, change sign, square root, automatic constants and three-key independent memory. Calculator is solar-powered with battery (AG10) backup.