SteelSeries Aerox 9 Wireless ? Ultra-Lightweight Wireless Gaming Mouse ? 18000 CPI ? TrueMove Air Optical Sensor - Water Resistant? 180 Hour Battery ? 18 Programmable Buttons,Ultra Lightweight Design - one of the lightest MMO/MOBA mice at 89g, perfect for long gaming sessions in games like Final Fantasy XIV, World of Warcraft, Guild Wars 2, Elder Scrolls Online, League of Legends, DotA 2, and many more.,Total Customization - 18 programmable buttons with a 12-button side panel and a tilt-click scroll wheel for tons of shortcuts to abilities and macros. Customize every click with ease using SteelSeries Engine.,All-Around Protection - Rated IP54, AquaBarrier shields the mouse from water, dust, dirt, and more.,Next-Gen Dual Wireless - Lag-free Quantum 2.0 wireless with a flawless 2.4GHz connection for gaming, and on-the-go Bluetooth 5.0 connectivity.,Extra Long Battery Life - Play for up to 180 hours. Fast charging can provide 40 hours of gameplay from only a 15-minute charge.,