S.O.L. Survive Outdoors Longer Slim Rescue Howler Whistle (2-Count), Orange, Model:AD0010

Emitting a piercing one hundred-decibel signal, this slim single-frequency whistle is audible from over a mile away.
Pea-less design ensures that the whistle works in any outside conditions without jamming or freezing.
Weighing not up to an ounce, this ultra-portable whistle fits in any pocket and attaches to zipper pulls.
These whistles are perfect for signaling for a wide range of out of doors activities, whether you’re at the trail, at the slope, the water, and more.
Each and every pack incorporates two whistles to share or distribute among gear like a rain jacket or go bag.