Apparatus for recording and reproduction of sound, images or data; Apparatus for wireless transmission of acoustic information; Audio-video receivers; Audio dubbing apparatus; Audio electronic components, namely, surround sound systems; Audio equalizer apparatus; Audio headphones; Audio- and video-receivers; Earphones; Earphones and headphones; Headphones; Headphones including attached lanyard; Headsets for cellular or mobile phones; Headsets for mobile telephones; Headsets for telephones; He...