Come on, people!? Only one comment referencing light sabers! You have to see the similarity - and what a great addition the buzz of the light-saber would have for the blind. No problems finding their walking stick again.
I do admire the intent behind the tech. The blind are very vulnerable at night, where even high-visibility clothing is often ignored by drivers. So, a walking stick with lights would make the blind more visible.
But I have to agree with 
For something you can easily re-create with a strip of LED lights, using the walking stick they've already got, it's a bit of a stretch to ask $185. Which is a pity, because I do like the idea behind it.
Good hunting.
RE: Electronic Walking Stick - Electronic Walking Stick that can be seen for half a mile