The RF Remote for Windows Vista is a sleek and powerful RF remote control designed specifically for use with Vista's Media Center multimedia software. It provides more range, convenience and flexibility than infrared remotes.Connectivity Technology: WirelessWireless Technology: Radio FrequencyWireless Operating Distance: 90 ftCompatible Devices: PCHeight: 1.3Width: 2.4"Depth: 7.9"Weight (Approximate): 3.70 ozPackage Contents: Vista Media Center RF Remote ControlUSB RF ReceiverPrinted Quick Start Guide2 x AA Batteries for RemotePackage ContentsVista Media Center RF Remote ControlUSB RF ReceiverPrinted Quick Start Guide2 x AA Batteries for Remote"