The Microsoft Wireless Mobile Mouse 6000 is a battery-operated BlueTrack Nano mouse that connects to Microsoft PCs via a snap-in Nano receiver. As an upgrade from the original Mobile Mouse 4000, the 6000 features 5 programmable buttons, rubber side grips, and blue lighting effects. At its core is BlueTrack technology, a proprietary Microsoft engineering feat that allows the mouse to work on virtually any surface. Included also is a Nano receiver that plugs into a computer and then transmits signals from the mouse (maximum distance: 30’). The Mouse 6000 is unfortunately battery-operated, but does at the very least offer a 10 month lifespan.