2 Pack 150dB Waterproof Double-Tube Aluminum Alloy High Decibel Survival Whistle Keychains

This value set includes two dual-tube emergency whistles in champagne gold and matte silver frosted aluminum finish, each fitted with metal link chain and polished split key ring for attachment to keys, hiking backpacks, life jackets and outdoor survival kits.

Crafted from lightweight aviation-grade aluminum alloy, the independent double air chamber structure delivers up to 150dB ultra-loud dual-frequency sound with exceptional long-distance penetration. The sharp clear tone cuts through wind, mountain mist, dense foliage and building rubble, serving as essential SOS rescue signaling gear for hiking, camping, mountaineering, boating and all wilderness emergency situations.

The anodized frosted metal shell features full waterproof, rust-proof, scratch-resistant and fade-resistant performance, maintaining consistent stable sound output in rain, snow, river water and damp harsh outdoor environments without oxidation or discoloration. Slim vertical streamlined body is ultra-lightweight, adding negligible weight for long-distance trekking and daily 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 components that jam or fall off, simple to wipe clean of outdoor dust and water stains.

Multi-functional compact waterproof EDC lifesaving tool for hikers, boaters, outdoor adventurers, lifeguards and household emergency preparedness storage kits.

What's in the box
1 x 2 Pack Whistles