The Microsoft 3500 Wireless Mobile Mouse uses BlueTrack technology for accurate, fast tracking and a long battery life means you can use this mouse consistently for months at a time without suffering from stuttering performance.

Key Features
The Microsoft 3500 Wireless Mobile Mouse features an ambidextrous design to make it equally comfortable in both the left and right hand.
BlueTrack technology combines the accuracy of laser tracking with the power of optical to give the Microsoft 3500 Wireless Mobile Mouse high levels of precision, allowing it to confidently track on almost any surface.
This Microsoft 3500 Wireless Mobile Mouse has a battery life of up to 8 months, eliminating the need to change the battery consistently during periods of heavy use. When the battery is reaching low levels of power the status indicator on the mouse will light up alerting you that a fresh battery will be required soon.