These made my ears bleed. I didn't know what was wrong, thought it was me. For a long time ears were soar, after continued use they "wore" the skin at the ear entry point. After continued scabbing and pain, I had to try a different brand that works perfectly, and now know these earplugs likely have material not universally "human-friendly". The brand I now have work as advertised. They are Moldex Flents PROTECHS NRR33 Quiet Time. They are purple, try this product instead.
Or you could by both and find out for yourself.
One week on, then switch.
|商品尺寸||15.2 x 2.5 x 15.2 厘米|
|型号 / 款号||14040-50|
|包装清单||50 Pieces of Earplug|