Micro-precise scroll wheel With more grooves per millimeter, our new scroll wheel gives you the ultimate navigation experience. It makes scrolling through long web pages faster and easier Ergonomically shaped The ergonomically shaped design and soft rubber grips conform to your hand to be naturally comfortable, and the compact size makes it easy to take with you wherever you use your computer—at home, at work, or anywhere else. 3-year battery life* With the world’s longest-lasting battery, you can practically forget about changing batteries. Plus, the smart sleep mode saves power, while an indicator light eliminates surprises. Connect with ease
You pop the tiny Logitech Unifying receiver in your notebook and leave it there. You can even add more devices. Plug it. Forget it. Add to it. Logitech Advanced 2.4 GHz wireless You get the reliability of a cord with wireless convenience and freedom—fast data transmission and virtually no delays or dropouts. Logitech Advanced Optical Technology Laser-grade precision tracks over the most challenging surfaces—including smooth, glossy surfaces**—that are problematic for standard optical mice. All while using less power so you get longer battery life and more convenience. Page back/forward To make surfing your favorite websites easier, you can move the tilt wheel left or right to move backward or forward while you’re surfing the Web.*** * Battery life may vary based on user and computing conditions.
** The optical sensor does not work on glass or mirrors. If you’re looking for a mouse that will track on glass, click here.
*** Tilt wheel will not support backward/forward on Mac® computers but will support Dashboard, Exposé® or Spaces® (when selected in System Preferences). | 
