The Cougar 300M optical gaming mouse features 7 fully programmable buttons, an adjustable resolution of up to 4000 DPI, 20G acceleration, a 1000Hz polling rate and a lifespan of at least 5 million clicks. The built-in onboard memory allows you to bring up to three full configuration profiles and use them wherever you go, making the Cougar 300M the ideal choice for gamers looking for an ergonomic gaming mouse.