It took some time to figure out how to get them to sit in the canal properly, but once I figured it out they were amazing on the first test at my friends' blues show. Right next to the amp, it blocked out so much sound I could hear the conversation next to me, yet still hear my friend play guitar clearly. I moved to the back of the venue to test the difference and the band's sound became slightly clearer but still at a comfortable level. And I could still converse with a friend. They also were comfortable through the entire 4 hours. My ears usually hurt after wearing earbuds after an hour or so. Even the foam ones. These are perfect! And the entire Eargasm team is beyond exemplary!