The Logitech Wireless Mouse M310 is the easy-to-use, full-size mouse that feels just right. It feels good in either hand - even after long hours of use - thanks to its hand-friendly, contoured design with soft rubber side grips. The plug-and-forget nano-receiver is small enough to stay in your USB port so you won't lose it - and delivers reliable Logitech Advanced 2.4 GHz wireless connectivity. A 12-month battery life (Battery life may vary depending on your use) means less hassle. Navigating is simple too with smooth, responsive tracking. And you get the high quality and reliability that's made Logitech the global leader for mice - plus a three-year guarantee.