Earphones; earbuds; headphones; speaker units; speaker systems; audio speakers; mounts for speakers; electronic apparatus and instruments for recording and reproducing music, namely MP3 players, portable media players, portable audio players, DVD players, digital audio players; apparatus and equipment for recording and reproducing sound, namely MP3 players, portable audio players, digital audio players; apparatus for the recording of sound or images, namely video recorders and video reproducing apparatus, apparatus for speech recording and replaying, audio cassette recorders, audio recorders; apparatus for the transmission of sound or images, namely microphones, audio transmitter units, wireless transmitters and receivers; apparatus for the reproduction of sound or images, namely radios, portable radios, radios for vehicles, video screens, wearable video display monitors, video processors, audio processors; sound amplifying receivers; electroacoustic emphasizers, namely amplifiers and preamplifiers; portable sound reproducing apparatus; downloadable computer software for creating and editing music and sounds; downloadable computer software for processing digital images; downloadable computer software for processing digital music files; downloadable software to control and improve audio equipment sound quality; downloadable computer software for controlling the operation of audio and video devices