A small, compact calculator, this calculator is ideal for a small office or business. This small calculator is lightweight and easy to carry around. A very basic calculator, this model supports only the basic plus, minus, division, multiplication and percentage functions. It also has a basic one value memory storing function. Its twelve digit display makes it good for calculations of large numerical value to be done. It comes with a solar panel as a backup source of power to the internal battery. This calculator is extremely durable both physically and in terms of software capabilities. It has endured many drops and still hasn't shown any signs of malfunctioning. Only two problems I faced with this calculator. The screen is too small for quick reading. One has to look at it a few times to make sure the numbers are correct. One more problem was the keypad. It became hard extremely quick in just six months to be more exact. Other than that, this calculator would be a good calculator for light usage.