"Use the highly efficient controls of this wireless presenter to help you make your point and boost your confidence during your next presentation. This slide clicker with 2.4 GHz wireless connectivity lets you move freely up to 20 meters away from the receiver to provide the freedom to move around the room and mingle with your audience for greater impact. Intuitive slideshow controls are easy to find by touch for a smooth, simple way to navigate through each slide. The bright red laser pointer makes it easy for your audience to see exactly what you're pointing to. And with plug-and-play technology, simply plug the receiver into a USB port to begin. Lasers enhance engagement by making it easy to highlight key points. When the show is over, just place the receiver back in the presenter, and you're ready to go. System Requirements: Windows XP Windows Vista|USB port.