Hear no evil. The AKG N60NC headphones deliver Grammy award-winning AKG superior sound while also utilizing best in class active noise cancelling to minimize the disruptive sounds encountered on everything from planes to trains. With up to 30 hours of battery life you can fully immerse yourself in your music and if the battery dies out, the N60NC can still be used in passive mode. Accented with premium material such as aluminum, memory foam and leather, this unparalleled listening experience comes magnificently packaged in elegantly crafted lightweight headphones that provide both viewing and listening pleasure. In addition, this ultra premium audio offering comes complete with first-class features like an exclusive 3D-Axis folding mechanism, a fully-accessorized travel package, a one button universal remote/mic cable and a USB charging cable.