Tired of high-pitched sirens disturbing the quiet peace of the
quaint, idyllic burg in which you chose to make your home—New
York, NY? Good news. The NYPD is switching from its old
screeching siren to a new brand of siren called The Rumbler.
It's better because it rumbles!  The Rumbler emits woofer-driven
sound waves that pedestrians and distracted drivers can feel.
The vibrations are coupled with a low, bass siren that makes a
whooping sound.  "It actually reduces noise," a police official
told the WSJ. "I SAID IT ACTUALLY-Y-Y-Y. REDUCES-S-S-S-S. NOISE.
NOISE, I SAID!"  It sounds very nice. [WSJ]