Black - Official US NAVY Storm All Weather Safety Whistle - USA Made Adjustable hook and loop strap

Adjustable hook and loop strap creates a perfect fit

Front loop field on the tactical operator cap for attaching flags and morale patches (measures 3

120 pound working load strength

Cotton/spandex blend fabric provides breathability and stretch

Comes with 4 extra lenses & 1 spare bulb

Black - Official US NAVY Storm All Weather Safety Whistle - USA Made Adjustable hook and loop strapStorm safety whistle. Worlds loudest whistle. Can be heard through walls, through glass and through water. Can be heard over 1 4 of a mile through trees and over a 1 2 mile water. Decibel reading varies between 118 and 120 DB. Unique patented design allows it to be heard under water, up to 50 feet, because the sounding chamber forces all water to be purged when the whistle is blown. Creates a clear, high frequency sound, with a power rating over 75%