Dog whistle guide by snell as reported by Gundogsupply. Guiding whistles. Easy handle heavy blanket, strong wind. Orders also alert as verbal commands.
Acme thunder and camo whistles in keeping with Gundogsupply. Acme standard whistletrained distance easier, heavy when there is wind.
Whistleworld for acme, and fox to the degree that Co. Decorcey whistles, storm sport whistles, whistles, police scouts, school guides.