Large 12-Digit Display: A large LCD screen displays large numbers clearly, making it easy to read from a distance and aesthetically pleasing. Supports 12-digit display. Dual Power Design: The calculator uses both solar and battery power (battery not included). As long as you use it in a well-lit environment, the solar panel will provide the calculator with continuous power. Sensitive and Large Buttons: When the buttons are pressed, they are quickly registered and display the corresponding number on the screen. The electronic desktop calculator has a scientific design with large buttons, which conforms to people's habits and is comfortable to press. Multifunctional: addition, subtraction, multiplication, division, backspace, grand total, CE, %, M+ /M-/MRC, ON/AC button and automatic shutdown. The desktop calculator will turn off after about 6 minutes of inactivity. EXCELLENT FOR HOME AND OFFICE: This basic calculator is suitable for business, office, home, school or anyone who needs to perform some kind of calculation from time to time.