loud safety whistle, totally waterproof and can be heard underwater!
This whistle performs in all
conditions, in any weather or safety situation: blown and heard
on land, up to 1/2 mile, and even underwater, up to 50 feet. A
high-impact, non-corroding thermoplastic protective housing is
easy to grasp, and the patented double chamber design allows it
to be blown when held right side up or upside down, forcing all
water to be purged when the whistle is blown.
Exceeds Coast Guard and SOLAS requirements.