Onboard Memory : Store up to three game or player profiles on this PC gaming mouse. You can move it between computers without having to reconfigure it every time you do, and user-configurable lighting colours let you easily see which profile you're using<br />Easy to use : You don't need to be a genius to program this RGB mouse. With the easy-to-use Logitech configuration software, you can just drag and drop commands to where you want them. Automatic game detection knows what game you're playing so you can have custom configurations for every game<br />The sculpted, symmetrical shape : Equally comfortable in either hand (and the G300s USB gaming mouse is also great for people who want a small laptop mouse.) So, you can play longer before you get tired<br />A gaming-grade optical sensor: Accurately tracks slow or fast movements on a wide variety of surfaces. So you get consistent response to your hand movements ">