SUPER LOUD VOICE: Dual hole multi-frequency tone whistle, maximum 120 decibels, perfect for making noise, can be heard over 1.5 kilometer. No ball whistle, No moving parts for trouble free operation. Won't freeze like metal in cold environments, a great safety tool. NECK LANYARD: The whistle is small and cute, easy to carry and not easy to lose. Practical lanyard and clip design, rope length 40cm.The soft and lightweight cord won't chafe your neck, and the lanyard is adjustable so you can adjust it to the tightness you need. CLIP DESIGN: whistle is different from ordinary whistle, it is designed in the shape of clip, which is easy to carry. You can use the built-in clip to slide the safety whistle onto a life jacket, trailer, bag, belt, or clothing. DURABLE MATERIAL: The plastic whistle is not easily corroded, waterproof and durable in various environments. It floats on the water, so it's hard to lose.Perfect for water sports, open water swimming, and more. LIGHTWEIGHT AND BRIGHT COLORS: Each whistle weighs only 9.2 grams, you will hardly notice the whistle around your neck or attached to your gear. The whistle is bright orange and easy to see. The whistle is suitable for any activity and can be used in emergency situations during outdoor sports, mountain climbing, sailing, water playgrounds, tourist attractions, emergency rescue and marine activities Color: orange Size: 19x72mm Product includes: 10x whistle