Civetta Office Desktop Calculator 12 Digits Large Plastic Buttons Dual Power Solar Electronic Calculator Black Christmas Gift(Pack of 2) Easy to read calculator with extra large LCD display, 12 digit display Auto power-off, ergonomic design comfortable button New Year Sale! Desktop calculator set of 2, perfect for personal use or retailer, please buy product sold by Novias, otherwise we cannot guarantee the quality Dual power source: solar energy or 1 AAA battery-powered(no included) Calculator help you whiz through tricky math problems, a great helper for your wonderful life