Must-have if you own a Droid
Crutchfield Customer Review (What's this?)
It's tough, portable, and does its job. I had the DragonFly a while before purchasing the DragonTail, and I was blown away by the audio quality improvement from my Android, using Spotify Premium. I must say, I wish there were a braided-cord version... I use the DragonFly regularly while flying, and the size of my phone plus the DragonTail plus the DragonFly is difficult to manage (especially in economy seating). But the sound is so much better, it's easily worth the hassle.
Pros: much better sound from your phone
Cons: somewhat annoyingly rigid