Optimized for Microsoft Lync - with integrated call control and USB connector</br>Sennheiser HD voice clarity - wideband sound for a natural listening experience</br>Noise canceling microphone - filters out ambient noise for optimum speech clarity</br>High-Comfort - large ear pad in a lightweight headset for relaxed wearing</br>Dual-sided wearing style - for stereo HD sound reproduction in noisy environments</br>Noise canceling microphone - filters out ambient noise for optimum speech clarity</br>High-comfort - Dual sided?? with large ear pads in a lightweight headset for relaxed wearing</br>Call control features: answer/end a call?? volume up/down?? microphone mute?? redial last outgoing call and reject incoming call</br>Bendable boom arm - ensures microphone position is always optimal. Cannot be twisted out of position</br>Pivotable boom - rotates through 340 degrees for wearing flexibility on right or left ear and precision microphone placement</br>ActiveGard - technology protects you