Logitech wireless mouse m525 the perfect mix of performance precision and price our innovative micro precise wheel packs more grooves per millimetre which makes scrolling through long web pages faster and easier the ergonomically shaped design and soft rubber grips conform to your hand to be naturally comfortable with 3 full years of battery life you can almost forget about changing batteries the tiny logitech unifying receiver connects up to 6 unifying compatible mice or keyboardsmdas