The Kinzu v2 Pro Edition is built to kill (and win). It features, tournament grade Omron button switches which are recognized by the industry and the community as reliable, high-end hardware components that deliver 'best-in-class' performance and feedback. Easy to adjust CPI The centrally located toggle button allows you to quickly switch between two sensitivity settings. The pre-defined CPI settings in the Kinzu v2 Pro Edition are used and recommended by professional gamers all over the world. Shaped for comfort The SteelSeries Kinzu v2 Pro Edition is ergonomically shaped to comfortably fit all three grip styles - claw, palm and swipe - for easy reach to all 4 buttons whether the user is playing a fast-paced FPS game or even a long session MMO game. Superior tracking The SteelSeries Kinzu v2 Pro Edition uses optical technology and operates at 3600 frames per second and supports stable movement speeds at 65 inches per second. These specs simply say that regardless of your frantic movements, the mouse will consistently deliver, especially for fast-paced FPS games. Stability The SteelSeries Kinzu v2 Pro Edition is made to be stable on every kind of surface with the help of its tournament grade optical sensor. This sensor is also designed to eliminate jitter and provide optimized stability for the user.