My wife and I each have a Chatterbox X1. We use them mainly for music and bike-to-bike communications, but we also have headsets in our kids' helmets so they can talk while riding pillion. They seem to work great depending on what helmet you use. In my HJC full face, I found the Chatterbox to have really good audio quality while listening to music from the iPod and for communications. One thing though, I use it with earplugs and the volume turned up. The earplugs filter out the road noise really well and the proximity of the speakers to the ear allows the music to come through quite nicely. All that changed, however, when I got my Arai XD helmet. It is much noisier at highway speeds, and on my trip this past weekend I found that I couldn't listen to music very well at all even with earplugs, though the communications seemed to work well. Overall I'm happy with the Chatterbox, but I may see about getting some custom fitted ear phones and an adapter for use with my XD helmet.