The Rescue Howler Whistle was developed exclusively for the Adventure Medical Kits Pocket Survival Pak™ by Fox 40®, the leading maker of professional whistles. Now, by popular demand, the Rescue Howler is available separately.
This ultra-light whistle is extremely loud. It is one of the loudest whistles out there. Because of its pealess design, there are no little balls inside of it. If it gets wet, simply blow out the water and use normally. Its triple-frequency design exceeds SOLAS and U.S. Coast Guard specifications.