Noise cancelling clarity, due to a noise cancelling microphone, your voice is easily understood without you having to shout USB plug and play, simply plug into your PC or Mac USB port and start phoning over the net Stereo sound, Sennheiser quality that is ideal for a range of applications such as music and gaming Light and comfortable with the lightweight headband, it’s easy to forget you are even wearing a headset Easy volume control, the in-line volume/mute control lets you make quick adjustments without fiddling with your computer settings