Sennheiser PC 131 product# S1-PC131 The PC 131 is an over the head, binaural headset. Ideal for gaming, voice recognition internet telephony and other voice over IP applications. Key Feature Noise cancelling microphone Microphone rest position Stereo headset with single sided cable Robust microphone for 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 131 2 x 3.5mm stereo jacks for both voice and mic PC sockets