Super Loud Survival Whistles: High pitch double tubes rescue whistle can provide up to 120 decibels, enough to be heard at long distance.
Portable Size But Durable: Premium quality material on Aluminum Alloy, strong and durable; only 12g, easy to carry and perfect size match for keychain or backpack.
Water-resistance Emergency Whistle: Can be used in rainy days, snowing and all kinds of bad weather, humid weather with excellent airflow design.
Versatility and Widely Used: loud safety whistle for camping, hiking, hunting, fishing, boating any kind of outdoor activities, school, gym, also for dog training.
Small but Potentially Important: This multi-function whistle could be a life-saver for referee teacher coach lifeguard, or anyone who needs a safety whistle in emergency. Also a nice gift for children or elder.