The Lenovo 500 Multimedia Controller gives you unprecedented control of your media on Windows operating systems. Simply connect to your device and browse the web from your sofa. With the entire keyboard serving as a touchpad, typing and navigating have never been easier. Match the wireless connection with an ergonomic design and up to 8 months of battery life and you have yourself a pretty nifty little remote. Large integrated touchpad on keys; Up to 3-finger Windows gesture support (dependent on Windows OS version); Compact and ergonomic design; 2 AAA batteries with up to 8 months battery life (may vary based on usage)