The Wireless Mouse owns an ergonomic shape and excellent tracking.The built-in wireless receiver storage compartment is handy for storing the receiver.Up to 10 meters of 2.4GHz wireless transmission brings interference–free operation and 800DPI optical sensor provides ultra high resolution and enhanced tracking performance on a variety of surfaces. Superior multiple power saving modes for up to 6 months battery life. Working easily and comfortably in all sorts of spaces and off uneven surfaces.