Oh, sure -- you've got at least 893.1 options (at last count, anyway) when it comes to noise cancelling headphones for your iDevice, but do any of those plug directly into the dock connector instead of requiring a separate battery? Exactly. That's the claim to fame for Blackbox's i10, a new set of earbuds that rely on power from your iPod or iPhone in order to achieve that active...
“Quick intro: I've come from a fair amount of "treble happy" headphones (Grado sr125i, Beyerdynamic dt880 pro, heir audio 3.a1), and some that are a little in between (Hifiman He400, Fostex Te-05). I listen to a large amount of classic rock, some blues, and a lot of EDM, with a smattering of orchestral and vocally-focused music thrown in. I purchased these to get some experience with...” --nwguy