Crafted for a supremely comfortable fit and specially designed for travelling, the N20NC headphones deliver an amazing audio performance while keeping the Grammy award winning sound experience AKG has delivered for years. Featuring active noise cancelling hybrid technology that cancels out the noises especially in the lower frequency range, the N20NC sound signature is clear, with warm bass response. Listeners will enjoy 20-hours of battery life that can be easily be recharged via the Micro USB and a tangle free fabric cable with a 3-button remote for compatibility with both Android and iOS devices. Best of all, the thoughtfully-included accessories - airline adapter, carrying case, cleaning tool, three different size ear tips and carrying pouch - mean these headphones are ready to elevate any musical journey to first class.