I couldn't find a set of earbuds that would stay in my ear while running. These do and they also block out excess noise. They come with two sizes of rubber coverings for a perfect fit. Very comfortable!
I have very narrow ear canals, and because of this I have difficulty finding earbuds that will stay in my ears and give me good acoustic quality. I have spent a lot of money trying to find earbuds that stay put and give me consistent sound. Other earbuds that offer a variety of insert sizes have not worked for me. The Fuji Labs acoustic sealing silicon earbuds actually stay comfortably in my ears, even when I'm running, and give me fantastic sound.
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