Sennheiser  PC141 On-Ear Headset with miicrophone & noise-canceling feature Robust microphone for high speech intelligibility Stereo headset with single sided cable Noise canceling Extremely comfortable neckband design Adjustable microphone position For Use With Internet Telephony Robust Microphone For High-Speech Intelligibility Stereo Headset With Single-Sided Cable Noise Canceling Adjustable Microphone Position