The practical calculator for office and desk use. Are you using your smartphone as a calculator and suddenly someone calls? In offices and business environments, investing in the Casio pocket/desk calculator is worthwhile. This easy-to-use little helper quickly reduces the likelihood of making mistakes. The display not only impresses with its high resolution but also shows twelve digits, ensuring clarity. With the tiltable display, you can easily read the entered numbers. The model is powered by a smart combination of solar and battery. This allows the calculator to be used conveniently anywhere. If you ever need to replace an old battery, you will need a model of type LR54.