Microsoft 3500 Halo Limited Edition Wireless Mouse, BlueTrack Technology, Nano Usb Receiver, (PC)

A mouse that works on more surfaces with Microsoft BlueTrack technologyBlueTrack Technology Plug-&-Go Nano Receiver Up to 8 Month Battery Life On/Off Switch Comfortable in Either Hand BlueTrack technologyMicrosoft BlueTrack technology combines the power of optical with the precision of laser for remarkable tracking on virtually any surface Plug-and-go nano transceiverLeave the Nano Transceiver plugged in when you're on the go, or stow it in the mouse On/off switchConserve more battery power by turning your mouse off when not in use Comfortable in either handUse your mouse with your left or right hand - ambidextrous design makes it comfortable either way....