Some say it's no longer hip to have an iPod, now that everyone has one (apart from me, I still cling to my walkman!) So time has come to accessorize your iPod with the very posh and exclusive Sensaphonics ProPhonic Soft 2Xs , the "custom in-ear monitors."
They isolate your ear from outside to increase the quality of the sound and enable you to listen to the music at a lower and thus less damaging volume. What's great is that they block any external noise whithout giving the impression that you have nasty earplugs stuck in your ears (so say the testers.)
Sure it's quite pricey: $850 but it involves the impression of your ears by an audiologist and dual-driver monitors custom-molded from a soft silicone.
Via Pop-Sci.