Logitech G400s 910-003589 Optical Gaming Mouse br br br Exclusive 4000 DPI Delta Zero Optical Sensor Built for consistent high-accuracy targeting in FPS games br 8 programmable buttons Perform single game commands or multi-command macros with a simple button click br On-the-fly adjustable DPI 400-4000 Instantly shift through multiple DPI settings without interrupting game play br Ultra-durable comfortable design Long-life buttons rated to 20 million clicks Sculpted comfort grip Advanced coatings help prevent hand from sticking to mouse br Made for PC gaming Compatible with Windows 8 Windows 7 and Windows Vista