Using ultrasound, avoiding interference

Subject can distinguish the amplitude, frequency, and the quality of the sound and from a mental image of the surrounding area. This will facilitate the attainment of a high level of mobility in the real world for the visually impaired

Look like sunglasses, user-friendly

The competitive cost of the “Bat Ears” will enhance its popularity in the market

Replace walking stick or combine with walking stick to expand the reachable world of the visually impaired

Maximally utilize the capacity of the brainpower of the visually impaired subjects