Designed for presenters who move around on stage or in a room, the Logitech R400 allows you to control your slides remotely without worrying about cables. Its 15-meter wireless range offers freedom of movement, while the built-in laser pointer (Class 2) guides the audience's attention with precision. The battery level indicator for the AAA alkaline batteries helps avoid unpleasant surprises during a presentation, and the device's 57-gram weight makes it virtually unnoticeable in the hand. Compatible with Windows XP, Vista, and 7 (32 and 64-bit), it connects without complex setup. A 3-year limited warranty is included.