This Texas Instruments TI-83 Plus Graphing Calculator is a handheld device that requires batteries for power source. It has a regular sized LCD display and is equipped with a graphing feature. This unit is perfect for individuals who need a reliable and efficient graphing calculator for their mathematical needs. It is made by Texas Instruments, a trusted brand known for producing quality calculators. This calculator is made in China and comes with a cover, ensuring its protection during transport and storage.