Camcorders; Earphones; Loudspeakers; Microphones; Webcams; Audio-video receivers; Computer network switches; Digital audio and video recorders and players; Downloadable computer programs for editing images, sound, and video; Electrical controlling devices; Encoding and decoding apparatus; Microphones; Microphones for communication devices; Music headphones; Pickups for telecommunication apparatus; Stands for photographic apparatus; Video cameras; Video recorders