Just got back from a three day 1160 mile backroads rip from Philadelphia to se Ohio (roads there are fantastic by the way). 3 riders. Updated 30K units. Mesh gave us about 5-6 hours of constant use before batteries gave up. Took an extended late lunch break each day (30 minutes or so) and put them on a battery pack while we were stopped. Got us through the rest of the day each time. On the third day my brain was a bit fried and I forgot to fast charge in the afternoon so I was forced to run a cable to the battery in my inside jacket pocket for the remainder of the day. It wasn’t noticeable or annoying and worked flawlessly. We were all also simultaneously paired to our respective phones. One of my riders uses his 30K every day for commuting and hit slightly less battery life (closer to 4-5 hours) on mesh because his internal battery is probably not in as good shape as the others. The mesh functionality was flawless. Not a single garbled word the whole trip. Very impressive. We didn’t try music sharing because just no. We didn’t shut ours off at all during the day (charging or otherwise) so didn’t run into the needing to turn mesh on again every time we powered up. Just in the mornings. Not a big deal either way.