For what it's worth... a note about sizing: I used to think I have the world smallest ears in the universe, no earphones out there fit my ears, ever. They always hurt. Even the ER-4 earphones I've used for years feel tight. So I got the smallest ones of these earplugs.
It turns out they're too small for my ears... entirely useless for me. Wasted $20 (and annoyed).
It turns out they're too small for my ears... entirely useless for me. Wasted $20 (and annoyed).