The new advanced Yealink Headset Adapter EHS36 provides the technical interface between Yealink SIP-T48S/T48G/T46S/T46G/T42S/T42G/T41S/T41P/T40G/T40P/T29G/T27G/T27P IP Phones and a compatible wireless headset. It is approved for use with wireless models made by major manufactures, including Jabra, Plantronics, and Sennheiser. The unit is easy to install via a simple link from the EHS36 to the EXT phone port. Its plug-and-play' mode gives you direct control of your Yealink phone, with the ability to answer and hang-up calls remotely. It has been designed specifically to ensure maximum effectiveness in reception areas, call-centers, and general telephone use. The EHS36 is ideal for corporate, financial, health, government, educational, industrial and SME/SoHo market sectors. Full compatibility with Jabra, Plantronics, and Sennheiser Phone control through a wireless headset Plug-and-play, easy to use Built-in RJ12(6P6C) input port connects to IP phone 1 x RJ45(8P8C) output port for GN/Jabra headset 1 x 3.5mm output port for Plantronics headset Accessories: RJ12, RJ45, 3.5mm, RJ11 cord