Fusion Engine high-speed tracking Sophisticated sensor technology for ultra-fast gamingHyperion Fury combines an optical sensor featuring Logitech Delta Zero™ technology with our exclusive Fusion Engine™ hybrid sensor to enable tracking speeds in excess of 500 IPS. 8 programmable buttons Customize to fit your style of game playCustomize your mouse with 8 programmable buttons. Whether you want to toss a grenade or quickly access your inventory it's at your fingertips. Optional Logitech Gaming Software makes set up easy. On-the-fly DPI switching 4 settings for better control of how you gameSwitch through four DPI settings in an instant. Snipe a foe across the map (250 DPI) before fleeing in the blink of an eye (4000 DPI). With on-the-fly DPI switching you have the flexibility to react to the chaos of battle with precision..