Noise Canceling Headphones --- Reduces unwanted ambient noise by 87.4%, providing a quieter environment to enhance your listening experience. Foldable and swivel design --- Allows the headphones to fold up to a small and compact size. Dual use capability --- Allows for the option to listen to music with or without noise cancellation. This allows you to still beable to use the headphones as headphones when the battery runs dry. Plug Adaptor --- is supplied to connect directly to stereo or dual jack of in-flight music services.