Storm Whistle by Markwort<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> The Storm Safety Whistle is ideal for all your favorite outdoor sports like hunting， diving， and hiking. It’s larger size makes is easy to grasp and use for personal protection. </span></li><li><span class="a-list-item"> Used by Police Departments， the U.S， Military， U.S. Coast Guard， and Emergency &amp; Diving Operations who appreciate their all-weather use. </span></li><li><span class="a-list-item"> Blown and heard on land， up to 1/2 mile， and even underwater， up to 50 ft. </span></li><li><span class="a-list-item"> A non-corroding thermoplastic housing is easy to grasp， and the patented double chamber design allows it to be blown when held reight side up or upside down. </span></li><li><span class="a-list-item"> each whistle purges moisture yet still delivers a loud， penetrating sound easily heard in any environment. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51ztyKXBJ2L.jpg" noproxy>