Lift the upper edge of the auricle with your hand to facilitate the wearing of Soundproof earplugs. Press the edge of the shark fin of the earplugs into the auricle snugly. ✐ Exceptional Noise Isolation: Which effectively reduces the interference of ambient noise, allowing you to focus on your studies or work in the midst of the noise, while not preventing you from communicating normally with those around you.
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