HP 39gs Graphing Calculator - USB, Infrared, Serial - Battery, Backup Memory

The new HP 39gs is the ultimate classroom companion with a large shared dynamic display with adjustable contrast, symbolic, numeric, and graphic displays, and algebraic data entry. Ideal for students from high school to university, it allows you to create and store custom apps with 256KB of memory, easy data sharing, and computer connectivity, among other features. Enjoy extended battery protection and lifespan with the included sliding rigid cover. You also get HP's excellent 24/7 support.