Logitech Marathon Mouse M705 Click and go for years without battery changes Having a wireless mouse is all about convenience. You want to check email, click through web pages, and scroll through spreadsheets anywhere you like—without wire clutter or a second thought. The only problem is your mouse may be a bit power hungry, causing you to change batteries more often than you expected. That's where Logitech's new Marathon Mouse M705 can simplify your mobile life. Power on with up to three years of battery life Say goodbye to the hassle, expense, and waste of frequent battery changes. Your new mouse uses less than half the battery power of comparable wireless mice. It's so energy efficient, you won't even have to think about replacing the batteries for years. And since you'll be using and disposing fewer batteries, you'll be doing a good thing for the planet, too. Take comfortable control The first time your hand rests on the Marathon Mouse M705, you'll know there's more going on here than a simple point and click. The compact, sculpted shape guides your hand naturally into place, giving you effortless mouse control that's oh-so comfortable wherever you go. Plus, three integrated thumb buttons are right where you need them to move more quickly between web pages and applications. Different setups. Different locations. One tiny Logitech Unifying receiver. The Logitech Unifying receiver is part of a new family of products that brings you wireless freedom and convenience without the hassle of multiple receivers. It's easy to pair up to six Unifying compatible devices, all to the same tiny receiver that never needs to leave your laptop. Now it's even more convenient to move around and work at the office, at home or on the road. Create the combo that works for you.