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This is a new GPS crutch for the elderly or people with amnesia.
There has GPS positioning insde stick. Then you can use the
GPS and make a fixed location .The old man who
go outside will be not afraid to get lost if they have G-light stick .
And In The front of the stick with rotating lamp, it will according
to your fixed location address then guide you by G-light. G-light
has three different directions, the front ,the left and the right.