The Plantronics Audio 478 USB stereo headset gives you great audio on the go. The lightweight, folding design means you can enjoy great audio wherever you are. You can use the in-line volume, mute and call control buttons to easily answer and end Skype calls directly from the headset. The noise-cancelling microphone and digital signal processing work to stop echo, reduce background noise, and deliver voice conversations so clear they have earned skype certification. There is also 24-bit high definition hi-fi stereo audio and comfortable foam ear pads, making it a pleasure to listen to music wherever you are. 2m cable. USB connection. In-line volume control. Mute control. SKYPE certified. Adjustable headset and microphone. Adjustable microphone. Manufacturers 2 year guarantee.