Your contact center agents are your brand ambassadors, so give them the tool to sound as clear as your brand. In Jabra's Biz 2300 world class sound meets world class durability in an exceptionally comfortable and stylish corded headset - keeping both your agents and your customers happy. Jabra Biz 2300 USB Microsoft Lync Duo is a stereo headset that provides USB connectivity optimized for Microsoft Lync.