The Yealink Bluetooth USB dongle adds Bluetooth connectivity to your Yealink IP Phone with a wide variety of Bluetooth Headsets, allowing you to receive calls wherever you are in the office. Compatible with Bluetooth specification V4.0, back compatible with Bluetooth V4.0+ HS system for wide-ranging use. <br /> <br /> "This is a Global Teck exclusive offer." <br /> <br /> <b>Bundle includes:</b> <br /> ✅ BT41 USB Bluetooth Dongle for SIP IP Phones <br /> ✅ Yealink Start Guide <br /> ✅ Global Teck Microfiber Cloth <br /> ✅ Compatible Yealink Phones: T27G, T29G, T46G, T48G, T41S, T42S, T46S, T48S, T53