Calculator, Standard Function Desktop Calculator with 12-Digit Large LCD Display and Big Sensitive Computer Keys, Solar Battery Dual Power Basic Calculator This 12-digit LCD Display Calculator is easy-to-use and perfect for basic to complex calculations. With large responsive keys, an angled screen, and a solar panel, this calculator is designed to solve all your problems while giving you a pleasant user experience. Solve all your problems with pride, satisfaction, and accuracy with our state-of-the-art calculator! Size: 13.91 * 13.07 * 3cm Material: Plastic Color: Black Specifications: 12-bit calculator Power Source: Solar, Battery Display Type: LCD 1: Super screen and font to clearly observe the calculation results 2: Using acrylic to cover high quality screen, easy to read, comfortable tilt angle, more visual angle 3: Battery + solar dual power drive, long-lasting, long working hours 4: With 120 steps, the function and correction function, automatically correct the calculation error and update results 5: Do not use it automatically, extend the machine life, save energy 6: One million button life, use plastic buttons, comfortable and easy to wear 7: Large Electronic Calculator Counter Solar Battery Power 12 Digit Display Multi-Functional Big Button for Business Office School Calculating [CLEAR DISPLAY] - With its large screen, this DELI calculator is made for convenient and comfortable everyday use. Its tilted and angled display allows you to easily see your calculations without straining your eyes. [LARGE RESPONSIVE BUTTONS] - Its spacious button size ensures that your fingers are much less likely to hit the wrong number, all while typing with a satisfying feeling. [USEFUL FUNCTIONS] ​- Grand Total/Markup/Memory Clear and Recall/Memory Add/Subtract Function keys help with basic and complex calculations. [ROBUST BUILD] - Built with a sturdy and premium plastic body, the Office Calculator is constructed with everyday use in mind. It is convenient, powerful, and long-lasting. [EFFICIENT ENERGY SOURCE] ​- Dual solar energy and battery power sources give this product a long-lasting battery life, so you never have to worry about running out of power. Also has Auto Power-Off. The calculator will turn itself off after about 6 minutes of being idle.