The Logitech M190 is a full-size, wireless mouse with a comfortable contoured design that follows the natural curve of medium to large hands. Work wirelessly up to 10 meters away with virtually no delays or dropouts. Lag-free wireless Full size, full comfort Precise tracking, effortless scrolling 18 months, one AA Plug and play Quality that lasts 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. Full size, full comfort It provides 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 the additional palm support provides all-day comfort. Precise tracking, effortless scrolling Navigate more easily thanks to a controlled line-by-line scrolling experience. The optical sensor gives you a smooth and accurate cursor control on almost any surface. 18 months, one AA Enjoy 18 months of worry-free usage. The power-saving mode automatically kicks in when you’re not using the mouse. Plug and play Works right out of the box – just plug in the USB receiver, and you’re good to go.