The sleek TI-Nspire CX handheld is the thinnest and lightest TI graphing calculator model to date Overlay and color-code math and science concepts on digital images or your own photos The installed TI-Nspire Rechargeable Battery is expected to last up to two weeks of normal use on a single charge Color-code equations, objects, points and lines on the full-color, backlit display Graph and rotate (manually and automatically) 3D functions,One-year limited warranty. Great condition