The Ti-Nspire Graphing Calculator by Texas Instruments is a handheld device powered by batteries. It features a backlight, calculus functions, and a clock. This graphing calculator is ideal for office and business use, providing advanced mathematical capabilities in a compact and portable design. With its sleek black design and user-friendly interface, the Ti-Nspire Graphing Calculator is a versatile tool for solving complex equations and analyzing data efficiently.