The Citizen LC310NR with Calculator is an electronic part manufactured by Citizen. It is a liquid crystal display (LCD) device with a calculator that enables users to perform calculations quickly and accurately. It has a 10 digit dot matrix Display and 56(max) calculator functions such as taxes, currency conversion, margin, discount, and seven memory functions. It is powered by solar energy and a single AAA battery. It also features an auto power-off function, a clock/calendar, and a flush-mounted low battery indicator. It is ideal for use in home, office, or school environments.