Outdoor Hiking, Traveling, Camping, Climbing, Cycling or in a Dark Environment, this Whistle can be used to ask for help, remind others, or scare away wild animals. The combination of two different materials of whistle meets all your needs for whistle: Plastic whistles: high-impact plastic material, durable, compact and not easily broken. Even in the cold in winter, it will not freeze and stick to the lips and can float. Aluminum whistles: metal material, sturdy and durable, waterproof, rustproof and fireproof. It will not crack or freeze under harsh conditions. Common features: 1. The sound is loud and not harsh. 2. The material is sturdy and durable, waterproof and rustproof, not easy to break. 3. Small, compact design, easy to carry. 4. It is easy to sound. 5. Convenient access-it can be hung on clothes or pants pocket/belt/backpack. In addition, it is equipped with an adjustable rope. You can choose to hang it on your neck or other easy-to-reach places. 6. Classic and fashionable appearance, no matter where you choose to put it, it will not appear obtrusive and outdated. Place these whistles in different places and carry them with you. Each person should be equipped with two life-saving whistles during outdoor activities, one with them, and one with a backpack, just in case. It can also be used as a small gift for relatives and friends who like to exercise. Wide range of applications Suitable for any water sports, boating, swimming, playing football, fishing, cycling, hiking, tourism, hunting, climbing, camping, training birds or dogs, etc.[Package Includes] 2 Plastic Emergency Whistles with adjustable Lanyard, 2 Aluminum alloy Whistles with key rings, 2 lanyards, 2 carbine clips. [Easy To Carry] Carry it easily with the clip-on design attached to backpack, hike gear, life jacket, kayak, etc. It has a lightweight and tough plastic body with adjustable lanyard. [Premium Quality] The whistle is durable, waterproof and rust resistant which won't break or freeze under harsh conditions and is safe for gripping directly from mouth as it is made of ABS plastic. [High Periodicity] The dual chambers without built-in peas and high frequency makes sure that the product won‘t mold and breed bacteria due to the pea. [Extremely Loud] This safety whistle has an unique double tubes design which produces 120 decibels easier to attract the attention of persons in the outdoors. It has an unique double tubes.Date First Available: June 24, 2021. Best Sellers Rank: #10,581 in Sports & Outdoors. Customer Reviews: 4.4 out of 5 stars 620 ratings 4.4 out of 5 stars. : B097T21JHT. Part Number: ?MJSAW-001. Manufacturer: ?Michael Josh. Color: ?Red. Brand Name: ?Michael Josh. Package Weight: ?0.13 Kilograms. Item Package Dimensions L x W x H: ?6.3 x 3.5 x 0.71 inches.