Be heard up to 2 miles away with this whistle!
NEWS – At up to 142 decibels, the HyperWhistle claims to be the world’s loudest whistle. That’s about 8 times louder than a typical sports whistle. The HyperWhistle can be heard up to 2+ miles away! Imagine the feeling of security having this whistle with you when you go camping, hiking, and boating. They even …