We served as Line Judges in a Youth Archery Tournament yesterday and noticed that the Range Captain used an electronic whistle to call the kids to their positions and to give virtually every signal. It was impressively loud and got us thinking about other uses, like dog training when its so cold that the pea freezes in your traditional whistle-- or just because its easier on your teeth. We've read reviews and (as usual) some are glowingly positive while others dismiss it as a piece of junk. Does anyone have any experience with the electronic whistle? Any thoughts?