Bought a pair of Bose earplugs as my regular Sennheisers I use when out and about developed a crack in the jack. Really annoying. The best thing you can say about them is that they are almost as good as the real thing. The low frequencies suffer as you would expect from the lack of hardware. You need a big speaker for decent bass sounds, and it's not really compensated for by being delivered straight into your eardrums. They are very comfortable to wear, you tend to forget you even have them on, but the second comming in audio experience they are not.