Audio-receivers and video-receivers; Cables, electric; Chargers for electric batteries; Connections for electric lines; Connections, electric; Couplings, electric; Earphones and headphones; Electric adapter cables; Electric connections; Electrical adapters; Headphones; Headsets for use with computers; Magnetic wires; Monopods for handheld digital electronic devices, namely, cell phones, MP3 players, personal digital assistants; Portable media players; Power switches; Radios; Stereo headphones...