Foldable headphones provide quality sound performance from both digital and analog music sources. Swivel earcups offer ultimate comfort for extended use. Adjustable locking headband stays firmly in place to prevent them from falling off during sudden movements. Space-saving design folds down for easy storage. Gold-plated, 3.5mm plug and 1/4" adapter allow compatibility with portable stereos, boom boxes, MP3 players, CD players and more.