Hama hk 5618 over ear stereo headphones the closed design of the hama hk 5618 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 hk5618 also comes complete with a 635mm adapter for further connection to stereo systems mixing boards etc and an extra long 2m cable capable of reaching across the room p