This Texas Instruments TI-82 Graphing Calculator is perfect for anyone in need of a reliable and efficient calculator for academic or professional use. The calculator features a regular display size and is powered by batteries, making it easy to use on the go. With features like calculus, this calculator is perfect for math-related tasks. The calculator is a handheld unit, and the slide cover ensures that it stays protected when not in use. This product is ideal for students, teachers, and professionals who need a reliable calculator to complete their tasks.