Gadget for the blind to alert them if they is too near something?

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Gadget for the blind to alert them if they is too near something?

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Gadget for the blind to alert them if they is too near something?

11-05-2009, 04:01 AM

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Dark A

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Gadget for the blind to alert them if they is too near something?

I would like to know if there are any gadgets out there that alerts the blind if they are too close to something.

I know this is the function of the white stick that they use. However, if such a gadget is created, what are the uses of it (in comparison to the white stick)?

So two questions:
1. Is there such a gadget?
2. What are they uses of it?

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