bat blind glasses / glasses

This glasses is specially designed for the blind so that they can perceive obstables in front of them by applying to this specific design. The ultrasound emitted from the glasses can detect the obstacles in front of the user and reflect the corresponding informantion back to the earphone so as to be perceived by the blind, paving a smoothier way for them mentally and physically. In this way, the blind can talk without a crutch making their life more convenient.