The Sena Technologies 10R gives you hands-free phone calls, listen to music, get GPS directions, and have full-duplex intercom conversations with other riders in crystal-clear audio quality through the stereo Bluetooth© headset. Ultra slim and feather light, perfect for the riders who want to concentrate on their riding technique and minimize fuss factor.; ; 10hr Talk time 1/2 Mile range Built in FM radio Bluetooth 4.1 Advanced Noise Control Advanced audio distribution Slim, Light, Easy to use Low profile, yet rich with high-performance features