I have been using the Sennheiser Presence Business 506066 Wireless Bluetooth Headset for 2 days now and have had great performance of of it. Great sound quality for both myself and the party on the other end. Battery life has been as stated. This product meets our exceeds all my expectations.

Very nice headset. My wife loves it. Voices are very clear and the controls are easy to operate.

Build quality is very good, connected to both Lync and Mobile phone with very little effort. Highly recommended for those who spend hours on conferences calls via a mobile or Lync.