Microsoft MHC-00026 Wireless Mobile Mouse 6000 - Lite Pink BlueTrack Technology - Take advantage of BlueTrack Technology, which combines the power of optical with the precision of laser for remarkable tracking on virtually any surface. Plug-And-Go Nano Transceiver - Leave the Nano Transceiver plugged in when you're on the go, or stow it in the mouse. 8-Month Battery Life - Use your mouse for up to eight months without having to change batteries. Battery status indicator tells you when battery power is low. Reliable 2.4-GHz Wireless - Enjoy the 2.4-gigahertz (GHz) wireless technology, which delivers a reliable connection with up to a 30-foot range, with virtually no interference. Works on Virtually Any Surface - Your mouse will work anywhere you do including granite, carpet, and rough-grain wood.