Have been able to use these a handful of times on long trips and have had no issues. We need to have adjustable cups that sit square over the ear with little pressure, similar to Bose quiet comfort which we bought some years ago. BRAVO! you just keep walking. I have been making mask lanyards with these beads and they are working out really well. But I always still wear them in the house. VERY GOOD QUALITY. I believe they are true to size. Shortwave Freqs, SSB, FM, AM all perform strong on whip/ferrite. This maybe wouldnt be an issue, but if you leave the area with your phone for say 10-15 minutes it powers off.