전기 신호를 소리로 바꾸어 큰 소리로 재생하는 장치.
An apparatus that converts electrical impulses into sound, typically used as part of an audio system or a public address system.
예문:
"The emergency instructions were broadcast clearly over the loudspeaker."
"He installed a new set of loudspeakers to improve the sound quality of his home theater."
"The politician used a portable loudspeaker to address the crowd at the rally."