Works with most presentation software Simple forward, reverse, and blank screen control Universal USB and PS2 for Mac or PC Easy plug-and-play...no software to load Secure transmission...4 billion encrypted codes Unsurpassed 150 ft. RF omni-directional range Sharp integrated laser pointer Great battery life and 12-month warranty 128MB flash memory which appears on computer desktop as a removable drive Whether you are a manager, a sales person, a teacher or you just need to provide professional presentations, the Power Presenter Plus will give you the most powerful way to control your presentation.The Power Presenter Plus helps presenters do what they do best, connect with an audience, and participate in a more effective, more interactive presentation. The last thing anyone wants to do is break stride during a presentation to advance or reverse slides manually, or to worry about accidentally pressing a wrong button and ending up lost or out of place. The Power Presenter Plus comes packaged complete with everything you need right out of the box. A base receiver, the palm sized wireless remote, one PS2 and USB cable for universal functionality, and an attractive carrying case. There is no software to load! The Power Presenter Plus is able to use either the USB or the PS2 port, you simply plug and play. The Power Presenter Plus utilizes a unique system, which combines a simple operation with a secure 64-bit code encrypted radio frequency transmission technology that ensures superior transmission and eliminates interference. This Code Encrypted technology also allows multi users within a small environment like classrooms or multiple boardrooms by eliminating the probability of accidentally controlling another persons presentation or worse, them controlling yours!