Dual Power: Solar energy and battery backup power keep the desktop calculator working in low light conditions (not including AA batteries).
Desk Calculator Large Display: 12 digits display and large numbers , easy to use.
Big Button: The electronic desktop calculator adopts a scientific large button design, which conforms to human habits and is comfortable to touch.
Basic Calculator : Add, subtract, multiply, divide, backspace, % and MU.
NOTE: Some user may use desk calculator in the early morning or night. The screen maybe difficult to read in low light without battery power. Please insert our AA battery for continuous and accurate usage.