Get more of what you need to get more done, more comfortably. More battery life. The ability to use it in more places. A more convenient wireless receiver. And a more comfortable shape.
Convenience and comfort
Logitech® Unifying receiver: The tiny wireless receiver stays in your notebook. There’s no need to unplug it when you move around, so your mouse is always connected when and where you feel like using it. Plus, you can easily add a compatible keyboard or number pad, or even another mouse—without the hassle of multiple USB receivers.
Ergonomically designed shape with soft rubber grip: Conforms to your hand to be naturally comfortable, yet is small enough to easily take with you.
Logitech® Advanced 2.4 GHz wireless: You get the reliability of a cord plus cordless convenience and freedom—fast data transmission and virtually no delays or dropouts.