Power up productivity for office workers with Voyager 4200 Office and UC Series Bluetooth wireless headsets. Outstanding audio, freedom to roam. Users can choose from two comfortable over-the-head styles. Mono lets them hear their surroundings. Stereo is ideal for listening to media and making every conversation sound like it's face-to-face. Your teams can count on superior Poly audio clarity-and comfort, thanks to soft ear cushions and an over-the-head headband. Plus, there's outstanding noise canceling and dual microphones to help block out nearby talkers. Users can connect to either their desk phone, computer or smart phone. Who's all set for more flexibility and freedom? Everyone.