Presenter mode,built in class 2 laser pointer, intuitive touch keys for easy slideshow control; AA batteries required (best with Polaroid AA batteries) Bright red laser pointer: Easy to see against most backgrounds Up to 50 foot wireless range for freedom to move around the room 2.4 GHz RF wireless technology, built in docking bay stores receiver for easy pack up and portability There’s no software to install: Just plug the receiver into a USB port to begin.