A new siren system uses four speakers, and a device called a Rumbler, which creates low-frequency vibrations to help ...

The Culver City Police Department has installed new Hi-Lo sirens in all of their patrol cars, which they say should help the public know when to leave their homes in the face of an emergency. "It's a ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

In a move sure to please more than a few motorists, police in Tulsa, OK are testing new sirens on their patrol cars with a tone low enough to send vibrations through targeted vehicles and their ...