Logitech Cordless 2.4 GHz Presenter - The Logitech Presenter is designed to make your presentations flow, giving you the freedom you need to make a great impression on your audience. Timing your speech to a slideshow is critical, which is why the Presenter gives you an easy-to-set LCD timer that gives automatic, vibrating warnings at 5 and 2 minutes remaining. In a large auditorium setting, movement can be key to getting your point across, which is why the 2.4 GHz wireless receiver offers you an extended 50-foot range. Here are some other features that will help you win over the crowd and keep up your confidence! Notebook Sized Travels Anywhere - includes a storable receiver and carrying case Plug & Play - no software is required for your Windows-based PC Connects via USB