Accessories

These are good headphones
I am headed on a backpacking trip to Peru and I needed noise cancelling headphones that weren't going to take up much space in my pack. These are the only noise cancelling earbuds I could find with a decent review.
I have been very impressed so far. I have not yet taken them on my trip, that will be in September but when I don't feel like listening to TV and my partner does, these solve the problem.
I don't find them to be super comfortable but I think it's just me.
I can see that the thin wires could be a failure point but I'm not really that hard on stuff so I'm hoping to get my money's worth out of them before they break.

I CAN HEAR MY HEART BEAT!!!
I was looking for an isolating headphone for an 18 hour flight to the Middle East. After reading reviews I decided on the ER-6. The price was reasonable and I really didn't feel like spending the kind of money necessary for the ER4-p set.

Pretty happy with this one. The flanges take quite a bit of getting used to, but they do produce a great quality sound, especially bass, provided you insert them properly. And for all those that say the bass is crap, READ THE MANUAL!!!! If instructions are follosed, especially the wetting the tips, they do go in properly.

The cable is on the thinnish side so make sure you don't pull on the cord when trying to remove them from your ear, or you're likely to trash your headphone. They are labeled L and R, though what difference that makes in the long run I'm not sure.

For me, I am going to use the soft foam ear tip. I found them more comfortable and quite a bit easier to put in.

One of the unpleasant things about in the ear tips is the cleaning aspect. They make replaceable disposable ear tips which are easy to use. Yes, this comes with a tool for cleaning the flange tips, and you then have to wash them with soap and water. Frankly speaking that's lots of constant care if you produce lots of ear wax.

It should also be stated that these are best used when you're stationary. Don't think about using these at the gym, walking or riding a bike. Aside from the safety factor, you will hear every footstep, every rustle in the wind and, as I said in the title, you might even hear your heartbeat or breathing!!! They're that isolating.

In a nutshell, buy these for quality at a reasonable price.

I did rate that at 4/5 due to the cord material being used and because of they're not an all-purpose headphone.

Great sound... ! Durable quality questionable!
A purchased an ER6i Isolator Earphones to listen to my IPOD (5G). No question about sound isolator quality!!! What is questionable here is it's durability. The problem is inside the jack, specifically the wiring. The cables in there break, apparently very easy. And this is not a common jack that can be replaced since there is where their sound technology resides. The warranty last a year, mine broke a little over a year with no frequent use (priced at $99.)
Is it possible Etymotic Research Team matches price, quality, warranty period and durability of this expensive but nice product?

Can't expect much more
Overall very pleased with performance. As advertised noise reduction is on par with good earplugs. Doesn't reach level of quiet described in earlier review talking about almost being run over by construction equipment because he couldn't hear it. Sound reproduction is excellent. Only nit-pick is sound transmitted to ear when wires rub against clothing etc. Not sure how could be resolved, maybe heavier coating on wires? Regardless, I have used in airports, on airplanes and under motorcycle helmet with great results. Have already recommended to friends.

good set of earphones
I liked the earphones. Sound isolation is quite good. I use them for gym. With ipod earphones, i used to keep my ipod volume to full. But now I keep around 70-80%. Now you can have fairly good idea about the level of isolation that it provides.
Altogether, its a good set. The sound is not as good as professional headphones like Sony MDR 7506 professional.