Two Way Power Calculator : Enjoy uninterrupted operation with our dual-powered calculator that runs on both solar and battery (AA batteries sold separately). Ideal for any lighting condition. Large Lcd Display & Easy To Press : Experience clarity and convenience with the 4.3-inch LCD screen and generously sized keys that ensure accuracy and comfort in your calculations. Portable Design For Office Use : Its slim profile fits perfectly on desks, making it an indispensable tool for quick calculations in any professional setting. Sensitive Button With Slim Design : The responsive buttons enhance your typing experience, while the sleek form factor saves space on crowded workspaces. Business And Personal Use : Whether balancing your finances or tackling complex equations, this versatile calculator meets the needs of professionals and students alike. Elevate your computing experience with our dual-powered Desk Calculator, meticulously crafted for seamless integration into your professional and personal life. With its large LCD display and intuitive button design, accuracy and ease-of-use are guaranteed.