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These are smart obstacle avoidance navigation glasses designed to assist the blind to travel. We designed these glasses, which combine sound wave and bone conduction technology to detect obstacles and give feedback, so that the blind can free up their hands to explore life. The glasses can broadcast voice through bone conduction, which avoids the inconvenience of traditional speech guidance, particularly the interference of in-ear earphones which may block hearing. Such glasses can provide detection information without interfering with the ability of blind people to hear surrounding sounds.