With 6 buttons, a tournament grade optical sensor, teflon feet, the Steel Series Kana strikes an ideal balance in size, features & performance. It features 2 XL-sized, side buttons for easy rapid-fire. The Steel Series Kana has an ergonomic, ambidextrous design makes it a natural fit for both right & left handed users. The Steel Series Kana uses advanced, optical technology that operates at 3600 frames per second & supports stable movement. These specs simply say that regardless of your frantic movements, the mouse will consistently deliver, especially for fast-paced FPS games.