When they worked they were great. I was very comfortable with them in all day, working, and playing. The Compression worked perfectly. I could still hear the noise, in the event there was a problem and I could hear people talking easaly. Very nice. They dropped the gun blast down to safe levels. The only problem was their crappy. I had them into the shop 3 times there was more travel time on them back and forth than time used. I'm looking for some others that compress the sounds.