The EL-531XBWH from Sharp is a scientific calculator that performs over 270 advanced functions. Perfect for a wide variety of applications, including math, statistics, biology, chemistry, and more, the EL-531XBWH provides the computational power that today"s students require. The two-line LCD has a glass top design that helps keep the display clear and easy to read, while an included hard case helps to protect the calculator from dents and scratches. Powered by two LR44 cell batteries, the EL-531XBWH has an automatic power down feature that helps to conserve battery power. Its Direct Algebraic Logic (DAL) entry lets you easily input equations. The unit comes backed with a one-year limited warranty. The calculator comes with two LR44 batteries, a hard case and user"s manual.