I'm a paramotor pilot and I put it on my helmet. In short, they work, but only marginally. The sound of my paramotor is too loud for a headset. I still get a slight ringing in my ears when I fly an hour and take them off after landing. However, I see that this is normal when you are at work. They are not fragile but must be handled with care, especially when attaching a longer antenna. When I'm done with that, I always take off the long antenna to be on the safe side, so that it doesn't breakโฆ