This Texas Instruments Ti84 Plus graphing calculator is a reliable tool for all your mathematical needs. Its regular-sized keys and display make it easy to use, while its handheld size ensures portability. This calculator uses battery power and is in working condition. Used and working condition. No cover, no batteries included. Small dark spot in screen on lower left hand side, does not affect functionality. Please refer to photo where numbers are typed to see that numbers display perfectly over the darker spot. Calculator has been disinfected. Smoke and pet free home. Ships same or next day.