Protects your ear in case of a crash. The “Masterpiece of Intelligence”, the new Mercedes-Benz E-Class, responds to critical threats before they occur. At a risk of collision “PRE-SAFE® Sound” makes a short noise over the sound system in the vehicle. This can trigger a reflex in the ear that conditions the hearing of the occupants. As a result, the burden of hearing can be reduced.
Learn everything about the new E-Class: http://mb4.me/New-EClass.

Experience the world of Mercedes-Benz: http://benz.me/international/

Subscribe to Mercedes-Benz on YouTube: http://www.youtube.com/subscription_center?add_user=MercedesBenzTV