Sennheiser PC 151< product# S1-PC151 The PC 151 is an over the head, binaural headset. Fantastic high-volume sound experience and great Sennheiser acoustics ideal for hard-core gaming. Key Feature Noise cancelling microphone Microphone rest position Adjustable headband High power stereo headphones for prolonged use single sided cable Closed-back ear capsules to reduce background interference Robust microphone with high speech intelligibility Internet telephony compatible Voice recognition In-line volume control and microphone mute switch Usable with CD/DVD/MP3 players Skype certified Delivery Includes 1 PC 151 2 x 3.5mm stereo jacks for both voice and mic PC sockets.