The Texas Instruments TI-84 Plus Graphic Calculator is a handheld device designed for graphing and calculus functions. With a regular key size and display, this model is powered by batteries, making it convenient for use on-the-go. Perfect for students and professionals in various fields, the TI-84 Plus offers a range of mathematical capabilities in a compact and portable design. The brand's reputation for quality and reliability ensures that this calculator is a dependable tool for solving complex equations and creating graphs with ease.