Featuring a large display and accessible buttons this CATIGA CD-2786 calculator is convenient and comfortable to use. Its spacious button size ensure that your fingers are much less likely to hit the wrong number saving you effort and time. Even with its large LCD display and generous button size it is small enough to fit in your pocket to take on the go. It is also a great mini addition to your desk (whether it be at home office your business or in the classroom) making it perfect for any basic or financial calculation needs. With its add subtract multiply divide backspace grand total CE % M+/M-/MRC and On/AC Button functionalities this calculator s versatile nature allows it to be used in many occasions. With the aid of its dual solar and battery power system it is fully powered in any lit environment. The battery comes included with the calculator ensuring quick and easy access right away. Lastly it is the perfect weight - not too heavy and not too light. This is the real deal. The ultimate calculator of calculators.