Best-in-class sound - legendary Sennheiser HD sound and HD voice clarity ensures a clearer and more natural audio experience</br>Optimized speech clarity - unique Speak Focus technology with 3 digital microphones enhances HD voice clarity in all sound environments and provides the listener with a consistently clear sound</br>Wind noise reduction - Wind Safe technology reduces wind noise in outdoor situations</br>Hearing protection - Active Gard technology protects you from acoustic shock and sudden sound surges</br>Maximized UC performance - Plug and Play compatibility with Microsoft Lync</br></br>Product Description</br></br>PRESENCE UC ML is a premium headset for mobile Unified Communications professionals using Microsoft Lync?? who require consistently excellent HD sound and HD voice clarity around the office?? in the car and outdoors.</br><br/>http://www.amazon.com/gp/product/B00EVNWAMI