The Casio FX-85GTX Scientific Calculator is a handheld device that is powered by both solar and battery energy, making it convenient for use anywhere. This model features a regular sized LCD display, perfect for displaying calculations in a clear and easy-to-read format. With its reliable Casio brand and specific model number, the Casio FX-85GTX is a new and sealed product that offers advanced scientific calculator functions for various office, industrial, and educational applications.