The build quality seems pretty good and installed great on two completely different style helmets. Audio is very quiet when using intercom. Music is garbled/broken up when using bluetooth on my phone. Had to download a MonoBT app which will play the music fine but sounds like it's 1950's AM radio quality. I had to turn the volume the entire way up to hear the other person on the intercom mode but I could barely hear them. THEN when I went to turn it off, the 5 beeps confirming the turn off procedure split my ear drums. Knowing what I know now, I'd look for other options. Two stars only because of a durable feeling build, performance gets 1 star. I partially wanted this for listening to music when riding solo but also to be able to communicate with my girlfriend, for safety reasons, who is a new rider. The instructions include how to manage music controls but this thing is an udder fail at music and mediocre at best in the intercom department. Only thing it excels at it extremely loud tone beeps for functions....