1. 扬声器装置：speaker pressure-frequency response == 扬声器声压频率响应 | speaker unit == 扬声器装置 | speaker-dependent == 声音辨识器

noun

1. electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

Synonym: loudspeakerspeakerloudspeaker systemspeaker system