We used the ODK w/SAR-M headset kit while operating a jet ski and jet sled at approximately 30mph and carrying on a radio conversation. This was to simulate the loudest environment we thought we’d have to encounter with the headsets.  Overall the product fit really well. The helmet we use is not designed for a headset to be used and it worked great. some of the fit issues are probably on our side

and just need experience and practice.  The audio performance was outstanding. we were very impressed, and we are excited to add this to our team.