(TI) Texas Instruments TI-84 Plus Graphing Calculator is in good working condition. The protective case shows signs of wear, and the USB cord is in excellent condition. This graphing calculator runs on 4 AAA batteries. Graphing calculator handles calculus, engineering, trigonometric, and financial functions. Contains a USB cable for file sharing with other calculators and connecting to PCs. Has a Guerrilla military-grade screen protector set.