The G300s features nine programmable controls that let you move commands to buttons that are in easy reach. Onboard memory allows you to store up to three game or player profiles so you can move it between computers without having to reconfigure it every time. The sculpted, ambidextrous shape offers comfortable use, and 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. Compatible with USB. Includes mouse user documentation 2-year manufacturers guarantee and full product support. Optical sensor. 9 buttons. Programmable buttons. Scroll wheel. Batteries not included. Manufacturers 2 year guarantee.