Foldable and portable high-performance headset for PC or Mac notebooks. Plug-and-play USB simplicity and pure digital audio quality. Super wideband audio for crystal-clear Internet calls. Comfortable and adjustable behind-the-head design. Noise-cancelling microphone and quick-access mute and volume controls The logitech laptop headset h555. pure digital sound, to go. the lightweight usb headset folds flat and delivers crystal clear digital sound.