Texas Instruments TI-Nspire CX Handheld Graphing Calculator with Full-Color DisplayDynamic full-color display with backlit capability. Thin and lightweight with easy touchpad navigation. Use digital images or your own photos and overlay with graphical elements on the screen. Student Software allows students to continue and/or complete assigned work outside of the classroom. Rechargeable battery included; lasts up to two weeks on a single charge. Power Source(s): Battery; Display Notation: Graphic; Memory: 100MB Storage Memory; Display Type(s): LCD.