Head Master Wireless Presenter R400, Presentation Wireless Presenter with Laser Pointer - First class Slide Advancer. Presenter Mode, Built-in Class 2 Laser Pointer, Intuitive touch-keys for easy slideshow control Bright red laser pointer ppt presenter- easy to see against most backgrounds, Remote simulator is terrific for Educational and Business People. Incredibly helpful for giving Seminars, Discussions by Students, Professors at Colleges, Workplaces as well as Leading MNC's. Up to 50-foot wireless range for freedom to move around the room,permitting you to deliver your presentation with the flexibility to move as you should as well as without any limitations 2.4GHz RF Wireless Technology, Built-in docking bay stores receiver for easy pack up and portability Theres no software to install. Just plug the receiver into a USB port to begin. And when the show is over, you can store the receiver in the presenter