Flashing white light isn't very noticeable
At $25 this is very overpriced. The flashing light flashes so often that if I drank each time it flashed, I would be overhydrated which can be dangerous because it messes up your electrolytes. Look up water intoxication for more info.  I thought this would only flash when you did not tip the bottle often enough to be hydrated.
Rating: 1 stars