The Logitech® Laptop Headset H555. Pure digital sound, to go. The lightweight headset folds flat and easily fits into the included case. When you make voice and video calls with Logitech Vid™, Skype™ 4.0 for Windows® or later, and Skype 2.8 for Mac® or later, you'll enjoy sound so clear it's like you're in the same room as the people you call. The behind-the-head design with adjustable earpieces keeps you comfortable with a lightweight, personalised fit. A USB connection means you'll enjoy pure digital audio in stereo – perfect for Internet calls, music, movies and games. And a noise-cancelling microphone reduces annoying background noise and rotates out of the way when you're not using it.