Come and see our amazing products. Emergency whistle for the safety of hiking and camping trips on a keychain for easy access. it is made of Stainless steel with louder Sound using in Emergency and in sports referee, double tubes can provide up to 150 decibels that pitch crisp sound can be heard far distance. It is highly durable! Double Tube design, it is easily blown softly so that just the blast out a loud tone. You can save 30% energy than normal whistle. If you get separated from the group while hiking. The perfect size to attach to keychain or backpack, you could put it on your keychain and take it everywhere you go. It is fashionable, practical and portable. A good partner 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.