Adventure Medical Kits Rescue Howler Whistle is ultralight and extremely loud. Triple-frequency design exceeds SOLAS and U.S. Coast Guard specifications. Two whistles per package.. ?. . . Ideal for backpackers, hikers, kayakers, children, and travelerskeep one attached to your pack, purse, briefcase, life vest/PFD, and key ring. Never-fail, pealess design. Ultralight, slim-design whistle tested at 100 decibels. Triple-frequency whistle is audible over one mileproduces sound that will rise above man-made or crowd noise. Compact, small and flat, this 3-chamber whistle has no pressure points. Ring attachment for lanyard or key ring. Measures: 2 1/8 x .25 in.; weighs 0.5 oz.. 2 pack. Made in the USA.
