1. Double tube burst sound design, high frequency penetration, up to 120 dB, wide range of coverage 2. One-piece molding, no ball design, with water / dust can also blow loud 3. Titanium alloy material, waterproof and corrosion-resistant, beautiful and textured 4. Top with hole design, can wear a lanyard / keychain, lightweight and portable 5. Exquisite rounded corners, comfortable to the touch 6. Applicable scenes: outdoor distress, warning, training, etc. 7. Material: titanium alloy 8. Size: about 4.18x 1.7 x 0.95cm 9. Weight: about 13g 10. Description: only the whistle, without the lanyard in the picture
