0 0 8518 Microphones and stands therefor (excl. cordless microphones with built-in transmitter); loudspeakers, whether or not mounted in their enclosures; headphones and earphones, whether or not combined with a microphone, and sets consisting of a microphone and one or more loudspeakers (excl. telephone sets, hearing aids and helmets with built-in headphones, whether or not incorporating a microphone); audio-frequency electric amplifiers; electric sound amplifier sets; parts thereof