FreedConn Motorcycle Helmet Speakers Headset with Soft Corded Microphone for Motorcycle Bluetooth Intercom Suitable for FreedConn FDCVB,T-COM,COLO series motorcycle helmet bluetooth intercom and other helmet communication systems that use mini USB port Designed for all full face helmet,soft corded microphone save more space than hard corded microphone and more convenient to use Hi-Fi music/audio functions DSP noise echo cancellation Thin, flat and comfortable