"No bottom, Shure E3c blows them away in range"2.0 starson by HowardBeale
Pros: SImple design, easy to tell R from L, nice clip reduces cable noise, durable. Useful soft carry case.
Cons: To my ears, poor low end relative to others in this price range.
Summary: I have both this model and Shure E3c's and after extensive A/B have abandoned these for the Shures. Much better frequency response in Shure. The Etymotics have it all over the Shures in durability, though. I'm replacing the Shures now but it won't be with an Etymotic.