The three-microphone technology creates a unique talk zone, making sure you are heard, while other nearby voices are filtered out. With an around-the-neck, wireless earbud design. A battery technology similar to that found in your smartphone. It fully charges in just two hours, and that charge provides up to 14 hours of battery life. Calls and music that lasts as long as you need it. Powerful at work. Fully concentrate, whatever the noise around you. Focus on Active Noise Cancellation, and an integrated busy light lets colleagues know you are not to be disturbed.