Logitech G903 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor Extraordinary gaming mouse with low latency LIGHTSPEED wireless. HERO 25K sensor for sub-micron tracking performance. Universal design for both hands for speedy scroll wheel. POWERPLAY compatible for continuous wireless charging. 1) FEATURES Fast Scroll Wheel POWERPLAY compatible LIGHTSYNC RGB: Requires Logitech G HUB software. Universal design for both left and right handers Removable Side Keys 7-11 programmable keys Mechanical key tension system 2) Compatibility Windows® 7 or higher macOS 10.11 or higher ChromeOS USB Port Internet connection for downloading Logitech G HUB (optional) 3) Product List G903 Gaming Mouse LIGHTSPEED USB receiver USB charging/data cable Accessory box Optional receiver expansion adapter Optional 10 gram counterweight Optional side buttons (2 x left, 2 x right) Optional button cover (1 x left, 1 x right) User documentation