Of course "NC" stands for "noise cancelling", but it could also stand for "no contest", because when it comes to pure, undisturbed sound, the AKG K495 NC headphones deliver high-quality performance and active noise control that are second to none. Durable and easy to charge through the USB, these top-of-the-line headphones create a perfect audio world: you get all the sound you want, and none of the sound you don’t.