I bought these because they are the only ones legal where I work. Other reviews say they are not loud enough. They fit completely in my ears, I had no problem with the ends coming loose in my ear. I love that the ends detach for cleaning and swapping. My only issue is the super thin wires that I had to replace. You have already connected your MP3 player 3 times, the first time only a few days after receipt. I bought some replacement plugs from Amazon and they've lasted a lot longer, but they still go short over time when they could just work a little more. Cables from volume knob to jack I believe this will solve this problem, still worth the price in my opinion especially if they are needed for listening to music at your work but I would be willing to pay more if the cables were a bit thicker
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