chuán​shēng​tǒng

megaphone

传声筒 (傳聲筒) chuán​shēng​tǒng
megaphone noun
a device used for amplifying sound or directing the voice, such as a loudhailer
mouthpiece noun
a person who merely parrots or relays the words and views of another person or organization

Frequency

Movie subtitles
0.120 per million appears in 0% of films
Written text
0.191 per million

Sources

Definitions
CC-CEDICT