The Texas Instruments TI-82 Graphing Calculator is a handheld device with a regular display size and key size, perfect for solving complex equations and graphing functions. This calculator, made by Texas Instruments in Taiwan, is powered by batteries and comes in a sleek grey color. It features a graphing capability, making it ideal for students, professionals, and anyone in need of a reliable and efficient calculator for their calculations. The included cover ensures the device stays protected when not in use, making it a practical and durable option for everyday use.