Meet the Cavalry Half-Helmet: a Bluetooth 4.1 enabled helmet that keeps you connected and safe on the road. It lets you listen to your music, answer phone calls, listen to GPS directions, and stay in touch with your friends using the built-in Bluetooth intercom from 900 meters away.
The Cavalry offers 10 hours of talk time. It is water resistant and has optional ear pads to boost audio on the open road. More info is available here.