This research is to develop a street-walking aid for the visually impaired, which detects front direction obstacles within 2 meters and inform the user with sound and vibration as well. This way it keeps the visually impaired from such obstacles. This aid also identifies 10 different colors quite correctly so that the visually impaired could apply it when he or she tries to match the color of his or her clothes, or he or she wants to know the color of things he or she would buy. This aid has additional function of identifying the brightness level around the user. It provides also various ergonomic design features such as optimized centroid design for minimal fatigue of hands even after long use, ideal position of back button for easy and convenient grip, easy and compact recharge, raised letters on all buttons, the usefulness of main body itself without attached white cane, non-slip hand grip, high-performance ultrasonic sensors, and wrist strap.