Thanks to an innovative design -- with its easy-gliding, sealed-bottom base -- this mouse is made for couch surfing and desk surfing. The easy-gliding base makes mousing around on couches, blankets, cushions, clothing, carpets and desks easy. Your mouse is active only when you are gripping it, so the cursor only moves when you want it to. And, this mouse stays asleep when you are not using it. This mouse was designed for best performance on fabric. When used on glossy surfaces or glass, Logitech recommends the use of a mouse pad. With its hyper-fast scrolling feature, you coast smoothly through the longest blogs, Twitter updates and Facebook feeds. Switch to click-to-click mode to step through photo albums, e-mails or friends lists. Once you have tried it, you will never want to go back to an ordinary wheel. The tiny Logitech Unifying receiver stays in your notebook, so there is no need to unplug it when you move around. Plus you can easily add a compatible keyboard or other mouse.