Definition of listening device in English:

listening device

noun

单词	listening device
释义	Definition of listening device in English: listening device noun An electronic device used for secretly listening to or recording someone's conversations. listening devices had been found in his private office Example sentencesExamples In movies, surveillance subjects often stroll in the park to escape listening devices. In December 1997, police installed covert listening devices in premises occupied by the appellant. Police say paparazzi planted a listening device outside her home in Sydney. Currently, it is an offence to intentionally intercept any private communication by means of a listening device. Instead of picking up the boardroom conversation, a listening device detects only the noise.
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