The EncorePro 500 USB Series is a fully integrated audio solution that enables users to focus on every conversation with all-day comfort, built-in call control, advanced audio processing and an enhanced noise cancelling microphone. Flexible unibody boom. Laser-welded construction. Built-in call management. Adjustable fit. Certified for Skype for Business and Optimized for Microsoft® Lync®. USB connectivity. Sold by each. Black.