Sonar sticks use ultrasound to guide blind people

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So Cool: Sonar Walking Sticks Use Ultrasound to Guide Blind People

The navigation aid worn by the blind.

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Functional components of the GuideCane.

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PROOF* that Covert Implants, Directed Energy Weapons, Hidden Drones,V2K, Silent Sound Spectrum, Remote Neural Monitoring & Chemtrails exist

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PDF) An Assistive System of Walking for Visually Impaired

Sonar Sticks Use Ultrasound To Guide Blind People