8 digit large angled LCD display, 3 key memory, square root, percent key, large equals bar, made from 50%+ recycled plastic. The Aurora EC101 handheld EcoCalc, is made from recycled plastic, powered entirely by light and is totally battery free. It has a large 8 digit LCD display for easy viewing, soft rubber keys and large numerals for ease of use and Auroras patented long equals bar to enable speedy calculations. Also included are all the basic maths functions you would expect on a calculator. So overall a great calculator that combines functionality with eco-friendly features. ISO14001, RoHS and WEEE compliant