UST Jetscream Black Floating Whistle (20-300-02)
UST - Ultimate Survival Technologies
Pea-less construction won't clog or freeze, allowing for all-weather useProduces a 122 dB ear-piercing shriekAttaches to packs, PFDs, and key chains to keep handy for all emergenciesWaterproof whistle is compact, flat, and buoyantMade of durable ABS...