Keyspan by Tripp Lite PR-US2 Presentation Remote Wireless w Laser, Mouse Wireless presentation remote designed for PowerPoint, Keynote and other presentation programs that use PowerPoint keystrokes No software to installsimply plug the receiver into a PC or Mac and the remote is ready to use in seconds Complete cursor control and two-button mouse capabilities provide full control over your presentation 60-foot range gives you freedom to roam; remote even works through walls and furniture Media mode controls Windows Media Player on a PC and iTunes or QuickTime on a Mac