Smart Headphone

Hi

I am thinking of a SMART HEADPHONE for people who are listenning to the music all the time for their saftey an their convenience and the people who tries to communicate with them. How SMART? The danger for such people is that they can not hear the alarm of the danger, like the horn of a vehicle. And also, sometimes they are called but they do not hear and consequently they do not show any reaction. This is so bothering for other people.

The tech: 

Uses a microphone and it is sensitive to the name of the person and some other sounds targeting him to alarm him or call him. like the horn, and some words which the person may be called with. And then the system alarm him in the case of danger or call him. Or it only lower the volume of the music.