Features: * The Storm whistle is one of the loudest whistles in the world, capable of being heard over a half mile away and even able to work underwater * Easy to hold, easy to use, and easy to hear * Used by police, military, search and rescue teams, and private citizens that demand the best in protection * The Storm whistle works by utilizing a patented resonance chamber attached to the whistle that enables the whistle to focus its sound like a laser beam and blast a noise twice as loud as any whistle made in the world * This same harmonic chamber also acts to protect the whistle from mud, snow, sand, and even water What"s In The Box: * Storm 101 Safety Whistle, Orange