2 Pack Dual-Hole Aluminum Alloy High Frequency Treble Survival Whistle Keychains
This practical set contains two dual-hole emergency whistles in champagne gold and silver matte anodized finishes. Each whistle is fitted with a metal link chain and silver split key ring for convenient attachment to keys, backpacks, life vests and disaster emergency kits.
Constructed from lightweight aviation aluminum alloy, the independent double-hole air channel structure generates crisp ultra-loud treble sound with outstanding signal penetration. The high-frequency tone easily cuts through wind, mountain fog, forest noise and earthquake rubble, serving as reliable self-help SOS alert gear for hiking, camping, mountaineering and outdoor emergency situations.
The frosted anodized metal exterior delivers superior rust-proof, scratch-resistant and fade-resistant performance, keeping stable consistent sound output in damp, rainy and waterside wild environments. Slim streamlined rectangular shape is ultra-lightweight, adding negligible weight for long-time outdoor carry.
All blowing contact edges are precisely polished smooth and rounded to avoid lip chafing during repeated continuous blowing. Seamless one-piece integrated construction has no loose fragile internal parts that jam or fall off, simple to wipe clean of dust and water stains.
Cost-effective portable lifesaving EDC tool for outdoor enthusiasts, hikers, field explorers and household emergency reserve storage kits.
What's in the box
1 x 2 Pack Whistles
