protection earphone / earphone

Pedestrians temporarily become deaf when they walk on street listening
to music. Walker Protect Earphone protects pedestrians using earphones
from various dangers.

It is extremely difficult to recognize sounds from back or out of
eyesight when walking down the street with music.

Walker Protect Earphone recognizes exterior sounds that a pedestrian
cannot hear while listening to music. Walker Protect Earphone
recognizes specific sounds such as a car horn or shout, and alerts the
pedestrian with vibration to notify the existence of danger and its
direction.