COMFORTABLE GRIP: Take advantage of an anti-slip surface that conforms precisely to your palm, offering a safe and cozy hold throughout extended gaming sessions, minimizing fatigue for improved performance. ALL-IN-ONE FIRE BUTTON: This feature streamlines gameplay with fast reaction times and guarantees a competitive edge in high-stress gaming situations. CUSTOMIZABLE DPI SETTINGS: Enhance accuracy and personalization for the best gaming experience by switching between four speed settings, each of which is represented by a different light color. ADJUSTABLE WEIGHT SYSYTEM: Six counterweights (5g/unit) at the bottom allow you to personalize your gaming experience. For easy weight adjustment that allows for customized mouse feel and the best possible gaming control, use the rotary add/drop device. WIDE COMPATIBIITY: Works with Windows 2000, XP, Vista, and 7 among other operating systems.