The Poly BT600 USB-A Bluetooth Audio Adapter (85Q81AA) is a compact, high-fidelity wireless dongle designed to connect Poly and Plantronics Bluetooth headsets to Windows and Mac computers via a standard USB-A port. Featuring Class 1 Bluetooth technology, the BT600 delivers a reliable wireless range of up to 98 feet (30 meters) in open environments, providing freedom of movement during calls and music playback. This adapter is optimized for use with select Poly Voyager series headsets including the Voyager 5200, Voyager Focus UC, Voyager 3200, Voyager 6200 UC, Voyager 8200 UC, and Voyager 4310/4320 series, as well as the BackBeat PRO+. Simply plug the BT600 into any available USB-A port for instant plug-and-play connectivity with no additional drivers required. LED indicators display connection and mute status at a glance. For advanced configuration, firmware updates, and device management, the adapter supports Poly Lens and Plantronics Hub desktop software. Ideal for professionals seeking stable, high-quality wireless audio for unified communications platforms such as Microsoft Teams, Zoom, and Cisco Webex, the BT600 is an essential accessory for any Poly Bluetooth headset user.