These are the Creative Aurvana X-Fi noise canceling headphones. They are great headphones from creative with noise cancellation, X-Fi Crystalizer, and X-Fi CMSS-3D features!! They sound incredible with a little bit of bass to them, as well as crystal clear highs and mids, great for music, podcasts, and movies. The noise cancellation is incredible, I flip that switch and I can't ear anything really. Also the 3D feature is amazing for movies since it makes voices come forward most. It sounds like a surround sound system! They are in great condition. They take batteries and the cover for the battery is broken a little but the cover stays on and you can't notice that it is cracked, and it will not cause the cover to fall off. The cover stays on tight when closed. Retail was over $300. Comes with case, cable, airplane adapter, 1/4 inch adapter, and headphones of course!