The new and advanced Yealink Headset Adapter EHS40 provides a technical interface between your Yealink IP Phones?T58A/T57W/T54W/T53W/T53/T48S/T46S/T42S/T41S?and a compatible wireless headset, including Jabra, Plantronics and Sennheiser wireless models. The unit is easy to install , simply link EHS40 to the USB port of the phone and, its plug-and-play effectively gives you the control of your Yealink phone and the ability to answer and hang up calls remotely.It has been especially designed to ensure maximum productivity in business applications such as receptions and call centers, and is ideal for the Corporate, Financial, Health, Government, Educational, Industrial, and SME/SoHo market sectors.