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Title: They really block out noise
Review: I have tried various styles of earphones with my iPod and none came close to blocking out ambient noise like these do. The 3-flange tip is the one I use. I travel frequently and it used to be a struggle to listen to audiobooks on a noisy airplane. Not any more. The ER6i's create a peaceful environment and deliver outstanding sound quality. The key is to follow the instructions for insertion exactly. Dampen the rubber tip and insert with a slight twisting motion. If you don't take the time to insert them properly the sound will lack bass and ambient noise will not be sealed out. They are worth the higher cost, especially if you want to be able to listen to your mp3 player in a noisy area.
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