Ok, for those people wondering why your Sena is intermittently beeping loud, that so many couldn’t understand was figured out by someone out here that none of us considered. The jog dial of the volume moves quite easily and has ridges so you can turn easy with your gloves. Thes wonderful ridges or grooves also catch the wind and the dial is easy to move. I decided to turn on my Sena with my helmet off and turned the jog to raise the volume until I heard that loud piercing beep at max volume. People were doing factory resets and nothing. Something so stupid. I was alway wondering why my volume changed and got louder after I slowed down. I thought it was a setting. I changed my mount to be more flush with the helmet. Going out tomorrow for a ride and I’ll test. I guess this has been happening with other devices. I have the 10C evo.  I hope this helps others since this issue goes years back.