I had the headset installed in my open face HJC helmet within 20 minutes and it fit very well. The plugs fit tight and when I first hooked up and tried the radio there was no sound. It was fairly dark when I installed the unit so the next day I checked the connections and found the connector cable to be not seated fully. After the connection was fully seated the headset worked great! The sound is very good and mic transmits clearly. I'll now order one for the passenger helmet.












