Police in Vienna are testing a device to get the attention of those driving on often crowded and noisy streets, conditions that can hamper a police cruiser trying to get somewhere quickly. 

Now authorities are testing the Rumbler, a device that augments the standard siren to create lower-pitched sound and vibrations that might get the attention of otherwise soundproofed motorists or pedestrians.

The Rumbler consists of two speakers, mounted inside the front bumper, that emit a lower-pitched siren that seems to slice through ambient noise more effectively.

The device even creates a small but noticeable vibration inside a car, much like when a passing car is playing a thunderous hip-hop song.

The Rumbler's manufacturer says it's only about two years old, but it has been picked up by about 200 police and sheriff's agencies around the country, including D.C.

Information from: The Washington Post

Email To A Friend