Marathon Mouse M705Impressive 3-year battery lifeMarathon Mouse M705Power ona wireless mouse that runs for up to three years on one set of batteries.Three-year battery lifeUp to three years of battery life helps you save time money and the planet by practically eliminating the need to change batteries. An indicator light lets you know when the battery is low.Hyper-fast scrollingYou'll fly through documents and Web pages with a single spin. Click-to-click scrolling gives you the precision you need when navigating lists slides and images.Precise cursor controlLogitech optical tracking offers precise cursor control and smooth navigation on most surfaces with 1000 dpi.Additional buttonsWant to quickly switch from page to page on the Web in an instant? Youll save time with the Forward/Backward buttons.Sculpted right-hand designThe sculpted right-hand shape guides your hand to a naturally poised position and places customizable control within your reach.Super powersForget the hassle expense and waste of frequent battery changes. You'll have up to three years of power.Connect with easeYou 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.Scroll with itHyper-fast scrollingone spin and you may never go back to an ordinary scroll wheel.