Long Range Acoustic Device

（重定向自LRAD）

The LRAD is the round black device on top of the New York City police Hummer.

LRAD operator wearing hearing protection

An NYPD officer stands ready with the LRAD 500X at an Occupy Wall Street protest on November 17, 2011 near the city hall

The Long Range Acoustic Device (LRAD) is an acoustic hailing device developed by LRAD Corporation to send messages and warning tones over longer distances or at higher volume than normal loudspeakers. LRAD systems are used for long range communications in a variety of applicationsincluding as a means of non-lethal, non-kinetic crowd control. Though they have been called "sonic weapons", LRADs are not inherently for military use.

单词	LRAD
释义	LRAD 原声例句 2020年高考英语阅读真题 46. What could be inferred from Paragraph 2 about the effect of the LRAD? 46. 关于 LRAD 的影响，从第 2 段可以推断出什么？ 2020年高考英语阅读真题 The noise from the LRAD is directed like a ray of light and travels only into the ears of that person, but it is not deadly. 来自 LRAD 的噪音像一束光一样被引导，只进入那个人的耳朵，但它并不致命。英语百科 Long Range Acoustic Device （重定向自LRAD） The Long Range Acoustic Device (LRAD) is an acoustic hailing device developed by LRAD Corporation to send messages and warning tones over longer distances or at higher volume than normal loudspeakers. LRAD systems are used for long range communications in a variety of applicationsincluding as a means of non-lethal, non-kinetic crowd control. Though they have been called "sonic weapons", LRADs are not inherently for military use.
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