easyLiving Headphone Adapter Adapter Charger Adapter AVAGO A5050 optical sensor brings accurate movement recognition; OMRON micro switches make buttons agile enough Built-in up to 3200DPI, 1000Hz polling rate, fast and precise positioning; independent fire key greatly improves gaming clearance efficiency Customized CD for advanced profile management; 9 programmable buttons for more than 40 settings to give unrivaled experience Full lightened & breathing LED lightning mode in 6 colors; different LED colors display when DPI changes; let your life be full of color! Large 3D scrolling wheel design, stronger damping ability; side anti-skid APS design, better non-slip effect