Paying twice the price of an instore nerf vortex youd think it would be the best of the best BUT It has hardly WHISTLES. The only reason I bought this was for the whistle and Its 1/10th the loudness of nerf vortex's I had as a kid so I was very disappointed. It could of been manufacturing problem with mine or these types just suck. I had to test it, so I took it out the package so I cant return it and got a louder one at the dollarstore. Buyer beware.