Surface tuning calibration: Easily calibrate the optical sensor to get best tracking performance for your specific mouse pad surface
Weight and balance tuning: Adjust the weight, center of balance and placement of weights for personalized feel and performance
11 programmable buttons: Set up one-button triggers to execute any command or macro at lightning speed
On-the-fly DPI: Quickly switch through up to 5 DPI settings (200-12,000) or temporarily downshift DPI for sniping.
Improved dual-mode hyperfast scroll wheel: Get enhanced click-to-click precision for gaming and blazing scrolling speeds for the web

Product Compatibility: Windows 98/ 2000/ME/NT /XP/win 7
Sleek micro switch for incredible clicking speed
Durability is increased with UV cured coating
Counterweighted for balance and playing "feel"
Incredible (variable) 4 Levels of DPI selection