also: クリスタルマイクロホン
noun
crystal microphone
A microphone that uses a piezoelectric crystal to convert sound into electrical signals. Technical term; commonly encountered in electronics and audio engineering contexts.
この古いラジオにはクリスタルマイクロフォンが使われている。
This old radio uses a crystal microphone.
Spelling with interpunct; common in technical or formal writing.
Variant with interpunct and マイクロホン.
Loanword from English 'crystal microphone'.