Microsoft 5BA-00007 is a wireless mouse with a snap-in transceiver that provides a reliable connection with up to a 30-foot range. It features Microsoft BlueTrack Technology, which combines the power of optical with the precision of laser for remarkable tracking on more surfaces than both optical and laser mice. This mouse is perfect for use on the go, as it works on virtually any surface, including granite countertops, living room or airport carpets, wood tables, and even rough, unfinished park benches.