Apparatus for transmitting and reproducing sound, Audio Amplifiers, Audio Speakers, Ear phones, Earphones, Earphones and headphones, Headphones, Headsets for cellular or mobile phones, Headsets for telephones, Headsets for use with computers, Sound reproducing apparatus, Sound reproduction apparatus, Sound transmitting apparatus, Stereo earphones and headphones, Earphones and headphones incorporating microphones, Earphones and headphones incorporating remote control