Worlds NO.1 Best Selling Wireless Gaming Gear Brand - Based on independent aggregated sales data (FEB ‘19 - FEB’20) of Wireless Gaming Keyboard, Mice, & PC Headset in units from: US, CA, CN, JP, KR, TW, TH, ID, DE, FR, RU, UK, SE, TR Power play wireless charging: never worry about your battery life again. Add the power play wireless charging system to keep G903 and other compatible g mice charged while at rest and at play. * *powerplay wireless charging system sold separately 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 Light speed wireless: pro-grade 1 ms report rate, no cable drag, no compromises on weight or battery life; eSports professionals depend on lightspeed’s responsiveness and reliable Connectivity 140 Hour lipo battery: super-efficient system design results in almost 6x the battery life of previous Gen; lasts for up to 140 hours with light Sync RGB lighting, and up to 180 hours without