Lùyīnpéng lǐ shǐyòng de shì gāo língmǐndù chuánshēngqì.
The studio uses high-sensitivity microphones.
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传声器 is the formal/technical term used in audio-engineering and broadcasting. In daily speech most people just say 麦克风 (from 'microphone') or 话筒 (lit. 'speech tube'). All three are interchangeable on a literal level - 传声器 just sounds more textbook.
