Size:2 Pack The new advanced Yealink Headset Adapter EHS36 provides the technical interface between Yealink SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P telephones 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.