(I don’t know what it’s really called… but you know… when you here that fool on the train next to you blasting his cRAP music and you can hear every freaking muffled sound from his ear buds…)
there’s some (they’re not sealed) but definitely much less than typical earbuds. You can probably cover the vents if you’d like to have them completely closed but I don’t know how that would sound.
I do not have these specific earbuds, but I can say a few things about Sennheiser in particular.
I have a pair of their HD series headphones, and I love them. I’ve had them for about six years now, and they’re wonderful. I believe them to have a very flat and accurate frequency response.
I also have a pair of Sennheiser earbuds that I bought. They work well, and while not as good as the Etymotic ER6i that I have, they also cost well under $100.
Something to remember with earbuds like these is that the frequency response from 20-20,000 Hz is only accurate with a very snug fit in the ears. You will not get great low end (bass) response if they’re not snug. Also, that figure goes beyond normal hearing limits in both directions (mostly in the upper segment depending on age and other factors) so it’s a pretty meaningless number. All it means is that it’ll reproduce any frequency you want (however, without seeing the response curve, there’s no guarantee how evenly).
I think my overall POINT is that I believe Sennheiser is a very good quality manufacturer. If you need a new, and compact, pair of earbuds, I would say these should be a good buy. Maybe this ‘review’ is meaningless since I don’t have the product, but for $18 shipped, it can’t hurt you TOO much to try them!
These are great earbuds, I use mine all the time. The cord design is in front not behind the head. Nice tight bass if you get them seated properly. In for 3. Woot on!
I put this over on the Deals site and I’m putting it here:
I bought a pair of these the last time around and I hate them. Every time the wires touch something, you hear it. Every time you move, you hear it. And they just make it seem like you have ear plugs in. If you can take all of that, consider this: less than a week after I bought mine, they started electrically shocking my ears. Sennheiser blames it on static electricity; I call BS to that, they’re just crap. I’ve found better for less money, right here on woot.