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Featuring a magnifier, compass, and two-scale thermometer as well as the whistle, the Four-Function Whistle is a handy tool for day hikes and back country treks and is also an ideal companion while boating or enjoying the outdoors.

• Shrill-sounding safety whistle with magnifier, compass, and two-scale thermometer
• Convenient lanyard with clip for attaching to jacket or backpack
• Affordable, essential gear for camping, backpacking, backcountry treks, and more

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