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Ultrasonic Hearing System lets Humans hear Ultrasonic Sounds!

Here’s a cool Ultrasonic Hearing System which lets humans to hear ultrasonic sounds.  Well, it’s a patent but maybe it will go into production so we can hear what insects and animals are listening to.

A direct drive hearing system for providing an ultrasonic signal to a portion of the human ear. The direct drive hearing system includes an ultrasonic direct device. The device includes a housing with at least one coil coupled to the housing. Insi

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