Package content: Comes with 2 x Silver Whistle, 2 x Gold Whistle, 2 x Black Whistle, with keychain, whistle size is 5.5*1.5cm

Premium quality: The whistle is made of high-quality aluminum alloy material, which is durable, not easy to fade and has a long service life. In addition, the surface is smooth, not easy to stick dust, more practical than other materials. Waterproof and rustproof

Double tube design: The whistle has gold and silver, 2 different colors for you to use. Double tube emergency whistle can emit up to 120 decibels, enough to be heard from a long distance. Attracts attention in any emergency. When you lose contact with your friends on the mountain and there is no signal on your phone, you can whistle. The whistle can help you find your friends

Lightweight and portable: The survival whistle weighs about 10g, is light and easy to carry. Easy to carry or attach to another keychain, belt, backpack, backpack or wherever you want to carry it

Widely used: This survival whistle is very loud and very suitable for outdoor activities, such as schools, gyms, camping, fishing, hiking, pet training, etc. It is also used for communication with a companion in remote areas, to call for help in an emergency. The whistle can be used not only for hiking, mountaineering, boating, hunting, fishing, but also for dog training, school sports, coaching etc.