I'd have to agree with you on the volume aspect when at highway speed regarding the Senas but I didn't really buy them for the bluetooth calling and bluetooth stereo capabilities, which I do like. I bought them for communicating with my BSR of which I have no complaints and hearing my gps. We both ride with full face helmets and she finds that with her Shoei, she gets very little wind noise because of good design of the helmet and she makes phone calls and listens to her music with little distortion. I wear an Icon and my helmet is basically wide open on the bottom so at highway speeds, I get lots of wind so I don't expect to hear what's playing music wise when travelling at 70 mph, but it is faint, but when my BSR cuts in to talk, it's okay. I'm sure if I went to a better sealing helmet, the volume would be better, I'm considering a modular and have tried (not used) the Schuberth C3, Shoei Multi & NeoTech and want to try the new Nolan model, I'm sure they would all be quieter than my Icon. All in all, we're happy with the Sena.