The company advertises this whistle as the loudest in the world; after purchasing these whistles, I might just beleive them. These whistles have an extremely high frequency screach (3150 hertz) that will undoubtedly make your ears ring. They are said to be able to be heard from 50 underwater and are 75% louder than any other safety whistle on the market. The focused 3150 hertz sound produced was found to be the most easily heard frequency in scientific tests. It is also between 118 and 120 decibles, abnoxiusly loud. They are made in the USA and, in my opinion, are an excellent value. After researching this product, I found that a lot of testing and research went into the development of these whistles, a comforting idea to consider when paying for any product that has to do with safety. One downside to these whistles are the size as they are definitely larger than your average fox40. However, what it lacks in compactability, it makes up for in function. Personally, I got these for camping to carry when on hikes and what not, just as a precaution. However, you can get creative with them and put them to any use you see fit. They are high performance and as versitile as a whistle gets. The following orginizations and outfits use this exact whistle: Special Forces Fort Bragg, North Carolina U.S. Dept. of Agriculture U.S. Dept. of the Interior U.S. Coast Guard, Washington, D.C. U.S. Naval Destroyer, U.S.N.S. John Ericsson U.S. Aircraft Carrier, U.S.S. Enterprise U.S. Army Troop Support Avionic Command, St. Louis, Missouri Park Forest Police Dept., Park Forest, Illinois NFL Referees Yuba City Police Dept., Yuba City, California Emergency Survival Systems, Sunnyville, California Disaster Solutions, Venice, Florida Dive Rescue, Fort Collins, Colorado New York Police Department Chicago Police Department Fort Worth Police Department Atlanta Police Department American Red Cross I highly recommend these whistles over the competition as they are definitely a superior product.
