Broadcast your position when lost in the wilderness with the Survive Outdoors Longer Rescue Howler Whistle. Signal others from over a mile away with this piercing, dual-frequency 110-decibel rescue whistle. Made with a dual-chamber, fail-safe, pea-less design, this whistle works in all weather and won't freeze or stick to lips when cold. Made from unbreakable ABS plastic, this whistle is dependable for a lifetime of trouble-free use. Keep this whistle with you on all of your outdoor adventures and clip to a zipper, wear on a lanyard, or slip into a pocket for quick access in unexpected situations. Each pack contains two rescue whistles.