High-performance design: The iconic shape that pushed the boundaries of the PC gaming mouse has evolved even further for wireless performance, a thin wall design and an internal endoskeleton structure to reduce weight and increase gaming control LIGHTSPEED wireless: The LIGHTSPEED ecosystem of USB wireless Logitech gaming mouse technologies are trusted by esports professionals to deliver pro-grade, ultra-fast and reliable gaming performance HERO 25K sensor: The HERO sensor delivers class-leading performance up to 25600 DPI, with pixel-precise performance and zero smoothing, filtering or acceleration 11 buttons and hyper-fast scroll wheel: Primary buttons feature metal-spring tensioning for fast, crisp actuation. Customise keybinds and macros for each game and app. Hyper-fast scroll wheel lets you speed through long documents and pages Tuneable weight & Colour systems: Customise the weight and balance of your gaming mouse with six adjustable weights for optimal pixel tracking, movement and targeting, and chose from the 16.8 million colours for your LIGHTSYNC RGB mouse