Logitech G300s Optical Gaming Mouse (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new, with limited to no signs of wear. The refurbishing process includes functionality testing, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon. Nine programmable controls: Move keyboard commands to mouse buttons that are in easy reach Gaming-grade optical sensor: Tracks accurately on a wide variety of surfaces and is tunable to achieve the responsiveness you need Three onboard memory profiles: Save profiles to the mouse once for gameplay on different computers and assign lighting colors to easily see which profile you're using Easy configuration software: Simply drag and drop commands to the buttons to setup the mouse exactly the way you want