Sit Back and Enjoy the Ride Unsurpassed audio and comfort, smart technology to make calling a breeze. Built for Compatibility All Poly USB headsets and personal speakerphones are compatible with the most popular voice platforms – we just work. Poly solutions provide excellent audio quality for both you and those on the other end of the call – no matter your platform of choice. Smart sensor technology Sensors react when you put on or take off your headset. Putting on your headset will: automatically answer an incoming call, transfer an active call from your phone, and resume streaming audio. Taking off your headset will: transfer an active call to your phone, pause streaming audio, and lock the Call button to avoid accidental calls.