Unlike many gaming mice—which let you map only specific commands and macros to individual buttons—software isn’t the only customizable aspect of the R.A.T. Its hardware is customizable, too. You can swap out the palm rest and pinkie grip, adjust the thumb rest, and even customize the weight of the mouse in order to mold the R.A.T. 9 into the perfect-feeling mouse for your specific anatomy and tastes.
The wireless R.A.T. 9 comes with two batteries and a charger. If all this power management is a concern, consider the Cyborg R.A.T. 7, which rocks the same basic build as the R.A.T. 9—6400 dpi, six programmable buttons, and a customizable design and all—but swaps out the cordless capabilities for a braided USB cable.
R.A.T. 7: $100 at BestBuy.com
R.A.T. 9: $150 at ThinkGeek