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Technology Stocks : LRAD - Long Range Acoustic Device
LRAD 7.310+0.8%Apr 12 4:00 PM EDT

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From: Savant6/10/2020 10:23:11 AM
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anti LRAD article, with a number of inaccuracies and an impractical device to shield from sound

vice.com

And of course, they emphasize that the best way to avoid hearing damage when facing down one of the devices is to leave the area. (which is usually the goal, of course, as well as send clear, easily understood communications)
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