New technology of Mercedes E-Class: this car can talk each other.
Your ear will never hear something else just you and around you.
It's the first car that can cover your ears before a bang-up
Mercedes-Benz engineers are human engineers first. When PRE-SAFE.
Sound senses an impending collision, it emits safe "pink noise" via the audio system to pre-trigger your ears' natural defense against the loud noises of an accident.
Find More information here Mercedes E-Class