The CHERRY XTRFY M4 mouse is wireless and ultra-light. With a construction that lets you tune the weight distribution. Since the centre of gravity moves depending on how you hold the mouse, we've made it possible to adjust it to your own grip. The M4 Wireless comes with interchangeable parts so you can adjust its size for the perfect grip. Other highlights: - Optimised for Esports - Wireless 2.4 Ghz connection with no lag - Adjustable ergonomic form - Ultralight with adjustable weight balance - Modular housing - two sizes (included) - Choose your own colour scheme System requirements: Win XP/Mac OSX 10.1 or later