FULL-SIZE. FULL COMFORT: Optimal comfort for your right or left hand with a contoured shape designed to follow the natural curve of larger hands. Specially scooped buttons guide your fingers into ideal placement, while additional palm support provides all-day comfort. QUALITY THAT LASTS: Get the durability and reliability that comes from the #1 world leader in mice and keyboards. Whether you use M190 with a laptop, desktop, at home or on the go, this is a mouse you can depend on. Get uncompromised quality with all the essentials you need at an affordable price. LAG-FREE WIRELESS: Work wirelessly and move freely — from up to 10 meters away — with virtually no delays or dropouts. No cable means no clutter on your desk — and easy transport from one workspace to another. PRECISE TRACKING. EFFORTLESS SCROLLING: Navigate more easily thanks to a controlled line-by-line scrolling experience. The optical sensor gives you smooth and accurate cursor control on almost any surface. That means accurate mouse movements with no more annoying missed clicks