Lightweight, Ambidextrous Design 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. 2.4 GHz Wireless Connectivity Fast, stable transmission with a longer connection distance. Extra Long Battery Life 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. Gaming Grade Optical Sensor Adjustable up to 10,000 DPI for greater tracking and precision. Upgrade Mouse Feet New-and-improved feet made with PTFE material for low friction and high durability, which provides a smooth, fast glide with maximum responsiveness.