Worn under my headset.
I'm a pilot and use a Bose A20 ANR headset in my plane. I became concerned about the ANR headsets not really blocking the noise to my ears but just masking it. I regularly fly a 300 kt leg which takes two hours + - depending on the upper winds. After a 4 hour round trip, I would be ragged out and thought it might be the noise. I've only flown one of those trips since trying these earplugs and it was a little more stressful than usual but I did notice I felt better (much less ragged out) than I usually do. They fit well and do not interfere with communication over the radio. I'm anxious to fly with them again to see if I really have solved my problem.
Rating: 5 stars