The Texas Instruments TI-83 Plus Graphing Calculator is a handheld device powered by batteries. It features a regular-sized LCD display and regular key size. This model is equipped with standard graphing capabilities and comes with a cover. The calculator has been tested and confirmed to be in working condition. It is branded by Texas Instruments and was manufactured in China. Flaws include as shown in photos Dark spot on screen ( does not effect it from being used ) The 1 button is kinda squished in still functional and working as it should Scratches on the back cover (looks like mio)