The TI-Nspire CX Teacher Bundle is a Handheld calculator and a single license TI-Nspire & CAS Teacher Software. Plain White Box. Ideal for Pre-Algebra Algebra 1 & 2 Trigonometry Geometry Pre-calculus Statistics Business & Finance Biology Physics Chemistry Calculus AP Statistics AP Physics AP Calculus Engineering (Electrical and Mechanical) and Linear Algebra. Full-color display with backlit capability; Touchpad navigation works more like a laptop computer; Ability to utilize images and overlay with graphical elements on screen; Powered by a TI-Nspire Rechargeable Battery; View multiple representations of a single problem on screen at the same time; Make changes to one representation of a problem and instantly see how it affects other ""dynamically linked"" representations; Built-in interactive geometry capabilities; Navigate easily between screens and functions using the intuitive computer-style interface that includes drop-down menus and simplified cursor controls; Enter text easily using individual (alpha) letter keys; Create and save problem-solving steps as electronic TI-Nspire documents similar to those on a computer; Link directly to another TI-Nspire or TI-Nspire CAS handheld or a computer to easily transfer TI-Nspire documents back-and-forth; Available memory: 16MB RAM / 20MB ROM.