What on earth is worse than not being able to fully enjoy your music due to noisy surroundings !?!
Ok, probably a ton of things but for this particular matter it seems that Sanko Ltd just found a solution thanks to their latest USB headphones with Noise Reduction (NC) technology.

It is through a little device that the function can be activated, as a result the sound instantly raises when needed in order to remain on top of any source of noise.

The built-in battery is made of lithium ion to combine light weight and good autonomy (15 hours after 2 hours of recharging). At only 50g there is a good chance you might rapidly forget it to appreciate only your favourite tunes! 4,280 Yen by the way.