Survival Whistle, CTRICALVER High Decibel Safety Whistle with Strap, Keychain,

• ❀Size: 57*18*8.5mm (length*width*height), mini, lightweight, easy to carry.The whistle comes with a keychain and a nylon lanyard, so you can hang it on your backpack, keychain, or hang it around your neck with a lanyard to prevent it from getting lost. • ❀Material: The survival whistle is made of high quality stainless steel, electroplated and colored, sturdy and durable, waterproof/fireproof/corrosion resistant, and has a long service life. • ❀Finish: The whistle tube is integrally molded and can be used in harsh environments with excellent performance.The metal whistle core has a ballless design and can be used regardless of water or dust.It can be used in all bad weather conditions such as air, rain, and snow. • ❀Design: Double-tube whistle design, light blowing and easy to blow, double-tube resonance, energy superposition, 45° oblique angle smooth air outlet, the sound reaches 80-150dB, and the high-frequency sound spreads.It has an airy feel, the pronunciation is smoother, and the sound transmission distance is clearer and longer. • ❀Scope of application: Wide range, can be used for personal training, outdoor survival, wilderness survival, distress rescue, bird training and dog training, competition refereeing, etc.