The MM311 gives you everything needed to win: adjustable 10,000 DPI optical sensor, genuine PTFE feet for unrivaled glide, and 2.4 GHz wireless for supreme versatility. All housed in a super-lightweight, revolutionary shell design that reduces the weight to 77g even with the battery. Light on weight but heavy on performance, the MM311 truly floats above the rest.​ Optimized for right-handers with two side buttons and lightweight design without exterior holes that compromise on aesthetics, weighs in at 77g even with a AA battery included. Fast, stable transmission with a longer connection distance. Up to 115hrs with one AA battery – it'll last dozens of sessions without having to worry about it dying in the middle of a fight. Adjustable up to 10,000 DPI for greater tracking and precision. New-and-improved feet made with PTFE material for low friction and high durability, which provides a smooth, fast glide with maximum responsiveness. New, improved software allows you to remap controls, tune your macros and more.