The I-Rocks IR7330 4-Way Navigation Laser Mouse is a very light, but robust 800/1600 DPI mouse. It offers more than the usual functionality and comes with a very small and slim piece of software to customize these. If you are a gamer looking for an ultra light mouse, this one may be for you. We won't be distracted by the fancy blue scroll wheel and take a close look at form, functionality, feel and performance of this mouse.