Wind Storm™ Safety Whistle
The Wind Storm™ whistles outperform all of the other leading brands of whistles. It even works underwater, up to 50 ft (15.25 m).
* Performs in all conditions, in any weather
* Can be heard on land up to 1/2 mile (804 m) away!
* Can be heard underwater for a distance of up to 50 ft (15.25 m)!
* SOLAS Coast Guard approved