Microsoft Wireless Mobile Mouse 3500 Limited Edition

This mouse works on virtually any surface thanks to Microsoft BlueTrack Technology, which combines the power of optical with the precision of laser. Its ergonomic design fits comfortably in either hand. Keep the nano transceiver plugged in to your USB port when you're on the go, or just stow it in the bottom of the mouse when you're done working. Battery life of eight months lets you work virtually uninterrupted, and the battery status indicator tells you when your power is running low.