Very handy and lightweight, its customizables buttons are very convenient.
Unlike a previous reviewer, I find attractive finish. The inch of material comfort is excellent (no addicted), multi-directional wheel did not play as well as the buttons ... it would have fallen on a faulty?
Level autonomy, depending on the brand of batteries. I take the sub brand and they take about three months for daily use (I'm computer scientist, so I'm on my laptop 8h / day mini ^^). If you take the mark, they will take 5 months.
The scope of the mouse is about 15m, which is very convenient if you watch the film lying in your bed or when ^^ PowerPoint presentation.
I take a star for the MicroGear wheel that no longer works at mo (dirty or abumé force to carry my mouse) and 800dpi precision to me it seems.