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LAPD rolls out new rumblr siren that can penetrate through 'solid materials'
A test pilot for the new low-frequency Rumbler siren system for Los Angeles Police Department vehicles is underway ...
The Los Angeles Police department announced its intention to install the low-frequency Rumbler siren into 20 black-and-white ...
The LAPD’s Rumbler deployment comes with a sound- and light-syncing system. That allows several police vehicles to broadcast ...
The technology, developed by Illinois-based Federal Signal, works by interacting with a standard police siren and amplifying ...
Add Yahoo as a preferred source to see more of our stories on Google. The Los Angeles Police Department is adding new technology to its black-and-white patrol vehicle fleet, including upgraded sirens ...
The Los Angeles Police Department is adding new technology to its black-and-white patrol vehicle fleet, including upgraded sirens designed to alert drivers sooner and improve safety. The so-called ...
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