The BuddyPhones Cosmos+ wireless headphones are the world's only headphones that combine active noise cancellation technology, volume control and 3 listening settings in a premium safe audio product for kids. The foldable Cosmos has a 24-hour battery life, works without a battery with the backup BuddyCable, can connect multiple earpieces to one device, and comes with a hard case for storage. What's in the box? BuddyPhones Cosmos+ USB-C charging cable, backup audio cable for sharing, hypoallergenic ear pads, hard case travel bag.