Tests show that the Windstorm ™ whistle produces a sound that is easily heard when compared to other popular whistles. Tested by independent research teams in demanding scientific methods, Windstorm ™ competed in the volume ...
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tests show that the Windstorm ™ whistle produces a sound that is easily heard when compared to other popular whistles. Tested by independent research teams in demanding scientific methods, Windstorm ™ competed in volume against the most popular whistles in the world. data obtained when testing whistles at constant pressure have proved large volume. In another test, the sound is received through a padded football helmet, Windstorm ™ whistle again overcomes the other.
This whistle betray you in all conditions, in all weather and security situation: whistle can be heard up to 800 meters away, and even under water up to 50 meters. Impact resistant, stainless thermoplastic protective housing is easy to grasp. The patented dual-chamber design allows always keep a whistle clean water from garbage, etc.
