A device for projecting sound waves, as in a loudspeaker.
By the time she had her design thought out, the loudspeaker had broadcast her plan throughout the factory.
A loudspeaker designed to reproduce bass frequencies.
The police addressed the crowd through a loudspeaker on their car.
扬声器, 扩声器, 喇叭[C]
We heard the news over the loudspeaker.