Tested and works.  Does not have battery cover but comes with case cover and instructions. The Texas Instruments TI-84 + Graphing Calculator is a handheld device powered by batteries, featuring regular-sized keys and designed specifically for graphing functions. This model, from the reputable brand Texas Instruments, is a unit quantity of 1 and includes a cover for protection. Ideal for office, business, and industrial applications, this graphing calculator is a reliable tool for solving equations, plotting graphs, and analyzing data in a convenient and portable form factor.