High-performance design:The iconic shape that pushed the boundaries of PC gaming mouse has evolved for wireless performance & internal endoskeleton structure to reduce weight & increase gaming control. Requirements : Windows 7 or later, Mac OS X 10.11 or later, Chrome OSTM, USB port Hero 25K sensor through a software update from G HUB, this upgrade is free to all players: Our most advanced, with 1:1 tracking, 400+ ips, and 100 - 25,600 max dpi sensitivity plus zero smoothing, filtering, or acceleration. PTFE Feet: 250-km range