Up for sale is a K272HD that I recently snagged for $100 on eBay. Unfortunately I've gone a bit crazy on headphone purchases this past month... I am a college student after all, even a couple of new headphones strains my wallet too much. I opened these, popped them on for 3 hours, confirmed that they sounded exactly like the K271mkii, then put them back in the box. They simply haven't been getting any use so I'll pass it on to someone who wants them. Comes with the original packaging and literature. Cosmetically flawless. Literally used for 3 hours. $70 with all fees included.