Good starting point if you want to start protecting your ears at music festivals and clubs. I've tested them already 100+ hours at the dancefloor. Didn't have any ringing or muffled sound after going six days in a row close to the speakers. However, they've fallen out a few times while dancing. I suspect that sweat makes them fall out. They're extremely difficult to find after dropping on the dark dancefloor. Got lucky so far that I always managed to retrieve them. Tried to use them while sleeping but found it impossible to sleep on the sides. They also fell out every night at some poing due to me moving a lot. Overall, these earplugs are very durable and good value for music events.—I wouldn't recommend them for sleeping, though.
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For some reason, I'm still not 100% whether I chose the right size. I'd like to have better instructions for selecting the best fit.
