Antennas; Microphones; Acoustic amplifiers; Adapter cables for headphones; Aerial amplifiers; Antennas for radio, for television; Apparatus for broadcasting, recording, transmission or reproduction of sound or images; Apparatus for recording, transmission or reproduction of sound; Apparatus for speech recording and replaying; Audio amplifiers; Audio cables; Audio headphones; Audio transmitter units; Loudspeakers, headphones, microphones and CD players; Microphones for communication devices; S...