Come and see our amazing products. Aluminum Double-barreled Whistle Keyring can provide up to 120 decibels, enough to be heard at long distance. It can be used as water-resistance camping whistle: Be used in all-environment all-weather, rainy day, humid weather with excellent airflow design. It can be used as loud safety whistle for camping, hiking, hunting, fishing, boating any kind of outdoor activities. Pls confirm with us about the packing info, stock color and exact production time before placing your order.