The best portable first aid environment
- It is a super-strong emergency waterproof whistle that generates sound waves in the desired direction. Multiple (triple) ranges are possible for complex terrain.
- It has a hearing protection function and is printed with a rescue signal method, so you can make a request quickly and accurately. (Request: 6 short times / Response: 3 long times)
-Volume : 90~128 dB
-Product Size : 78mm x 45mm x 20mm
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