The closed design of the hama hk 5619 headphones eliminate external disturbances to ensure that you can enjoy music or tv audio in uninterrupted comfort compatible with a range of hi fi systems and televisions in addition to pcs and other devices supporting a 35mm audio jack the hk5619 also comes complete with a 635mm adapter for further connection to stereo systems mixing boards etc and an extra long 6m cable capable of reaching across the room eg from tv to sofa plush ear cus