Powerful features for quick and efficient calculations the mp25dv-3 incorporates a fast, quiet, two-color high-speed ink ribbon printing system to ensure quick and efficient calculations. When you are not calculating numbers, a built-in clock and calendar make it a very useful addition to your desktop. With sophisticated built-in features such as tax and profit margin calculations, a 12-digit display and high-end durability, the mp25dv-3 is always ready for business!