Flexzion Wireless Presenter Clicker with Red Infrared Pointer USB Remote Control Pen Powerpoint Slide Presentation Range 82ft Battery Powered with Carrying Case for Windows 8 Vista XP Mac OS X Linux USB plug-and-play. No driver required A red infrared pointer that's easy to see against most backgrounds Up to 82-foot wireless range for freedom to move around the room Wireless USB receiver for plug-and-play simplicity with any computer Ideal for school, classroom, lecture, conference, speaker use