Dual-Frequency Outdoor Survival Whistle With Built-In Lanyard(Black)

1. Made of high-quality PP material, lightweight, portable, wear-resistant and durable
2. Double-opening design, high-frequency, the sound has strong penetration in different environments
3. Equipped with a lanyard, easy to carry and can effectively prevent loss
4. Weight: 12 grams
5. Size: 7.2x1.5x2.4 cm
6. Rope length: 19.5 cm