I've had some Shure e2c's for a little over a year. I bought them for use on the bus [0] and in the office and providing you're not a hardcore audiophile, they sound just as good if not better than a big set of heavy cans. The fact they work under a full face helmet is a big bonus. Getting them seated properly can take a minute or so but they're probably not going anywhere at that point unless you do a faceplant. With them in you get zero wind and very little engine noise. As a side effect, the lack of auditory input forces me to gain a much better feel of what is going on with the bike and traffic.
They're surprisingly loud, and when used under a helmet you'll want the volume turned down to a much lower level than you may first anticipate to be acceptable. At a proper volume all the aforementioned droning is gone but sirens should still be audible.
[0] The LA bus system is awesome [1]
[1] Sarcasm in full effect
They're surprisingly loud, and when used under a helmet you'll want the volume turned down to a much lower level than you may first anticipate to be acceptable. At a proper volume all the aforementioned droning is gone but sirens should still be audible.
[0] The LA bus system is awesome [1]
[1] Sarcasm in full effect