The Logitech Advanced Corded Mouse M500s with hyper-fast scrolling and 7 buttons for increased productivity. Fly through long documents and Web pages with just a flick of the scroll wheel.and precise feedback delivers a great precision feel to maximize your fun in game. HYPER-FAST SCROLLING: Fly through long documents and web pages with just a flick of a nearly frictionless scroll wheel. Or press the wheel and shift to click-to-click mode for precise navigation EXTREME COMFORT: This full-size mouse has soft side rubber grips and a sculpted design that give you more palm support and better control for long hours of productivity at the office or at home 7 CUSTOMIZABLE BUTTONS: Use Logitech software OPTIONS and the 7 programmable buttons to customize efficient task-specific shortcuts such as back-forward navigation copypaste music controls & more HIGH-PRECISION TRACKING: Optical Sensor with adjustable 400-4000 DPI levels for fast precise cursor control tailored to your needs and movements on your laptop or computer -no mousepad needed EASY PLUG-AND-PLAY: The wired Advanced Corded M500s works right out of the box?just plug it into your USB port and you?re good to go- no battery needed NEW ADVANCED VERSION OF M500: Now with high precision optical tracking including 400-4000 adjustable DPI and Logitech Software OPTIONS support for enhanced customization of the 7 buttons.