Not a very good sound, so I put 4. But solved the problem with the bass! I have a Sandisk Sansa Clip+ with Rockbox firmware. There I turned the bass up to 10, set the equalizer setting to Bass. And they began to hammer quite decently) Has pros: - Not harmful to the health of the ears. Earplugs build up more wax in your ears -They fit very well on the ears, you can run in them, dance, shake your head, they will be in place. -Cheap (took for 390). Where I got them they are the cheapest. Its cons: Poor quality sound. Especially noticeable when I just turned them on. Before that, there were also Panasonic plugs. The sound seemed similar to the headphones that come with players and phones.
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