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The signal whistle's sound can travel further than a human voice and other noises even if the perceived level of volume is similar. Using a whistle requires much less energy than yelling or other means of signaling for rescue in an emergency situation.
Features:
Same whistle that is included with many MTI models
All-weather marine grade whistle
Meets USCG requirements for a signal device
No metal or moving parts to break or corrode
Built-in clip and lanyard hole for tying cord to life jacket
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