Looks like a great price for the spec.
Precision Optical Gaming Mouse
3200DPI precise optical sensor
30G acceleration ensures the best performance during rapid movements
On-the-fly DPI switching with 3 stage red LED light indicator
Gaming-grade rubber provides a non-slip grip
4 way tilt-wheel scrolling provides more functionality and more application
Gold-plated USB connector - 1.8m strengthened cable customized for professional gamer
Gaming-grade Rubber - Comfortable texture with sweat-proof design provides a non-slip grip.
3 Stage DPI Indicator - Defaults are 800dpi/1600dpi/2000dpi, and it is customizable from 400-3200dpi adjustment via software
Simple drag-down menu enables user to set up mouse function depending on personal requirement.