We are proud to be associated with some of the best players in the world of e Sports. We maintain strong relationships & have continuous dialogue with teams like Natus Vincere, SK Gaming, Fnatic, Evil Geniuses & others who help in the development & improvement of our products. To ensure maximum performance in all gaming scenarios we enlisted help from world-class Star Craft II, Counter-Strike, Dot A, League of Legends, Heroes of Newerth, War Craft III & Doom players. The Steel Series Kinzu v 2 is designed for extended use. Its ergonomic & ambidextrous design makes it a natural fit for both right & left handed users. The Steel Series Kinzu v 2 is ergonomically shaped to comfortably fit all three grip styles – claw, palm & 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. The centrally located toggle button means that you can quickly switch between two sensitivity settings. The pre-defined CPI settings in the Kinzu v 2 are used & recommended by professional gamers all over the world. These CPI settings are also easily adjustable if you want to personalize your Kinzu v 2 via the Steel Series Engine software. The Steel Series Kinzu v 2 uses advanced, optical technology that operates at 3600 Frames Per Second & 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.