Good noise reduction, but don't trust the tether
The actual noise reduction of these is pretty nice. As described, you can still hear most of the details of music unlike regular foam plugs.<br />The downsides I've found are that my ears start to get kinda itchy, (which I suspect might indicate my ears weren't entirely clean when I put them in, so there's that). Also the tether to hold the plugs together doesn't stay on super well, meaning that the one time I dropped and nearly lost one of these on my flight was when they were tethered, which is kind of ironic. It's safer to just be careful with them than trust the tether.
Rating: 4 stars