Aerials; Amplifiers; Modems; Voltmeters; Acoustic alarms; Acoustic couplers; Alarm installations and alarms; Audio interfaces; Audio mixers; Audio and video receivers; Cassette players; Data processing apparatus; DVD players; Electric cables; Electric cables and wires; Electrical wires; Electronic cables; Equalizers being audio apparatus; Horns for loudspeakers; Loud speakers; Portable media players; Record players; Recording devices for sound and image carriers; Vehicle radios; Video screens...