Bluetooth wirelessConnect to any Bluetooth® -enabled PC or Mac® computer or Windows® 8 tablet—no receiver required. It’s the one mouse you can rely on to work with all the devices you work on.
Slim, ambidextrous design
Whether you’re a righty or a lefty, whether you use a fingertip or palm grip, the M557 is always a perfect fit.
12-month battery life*
Enjoy exceptional battery life for a Bluetooth mouse, and work for up to a full year between battery changes, An On/Off switch helps conserve power, smart sleep mode extends battery life, and an indicator light helps to ensure that you’ll never be caught off guard.
* Battery life may vary based on user and computing conditions.
Windows 8 Start screen button
A button located behind the scroll wheel makes it fast and simple to switch between the traditional Windows desktop and apps and the new, full-screen Windows 8 interface.