Dedicated to work with your deskphones iconic design ndash crafted for best comfort sennheiser hd voice clarity ndash wideband sound for natural listening experiences high comfort wearing style ndash perfect adjustment to your ear for a full day wearing comfort ultra noise cancelling microphone filters out unwanted background noise pairing for desk sharing and phone conferences ndash intuitive and easy to set up headset autolink switch on basis station microphone mute and volume up and d