SincreetaliEmergency Survival Whistle - Titanium whistle with a loud and clear sound (maximum sound intensity of 120 decibels) that can easily attract people's attention in some dangerous situations. Titanium Whistle - Made of titanium alloy, this whistle is corrosion-resistant, lightweight and durable. Easy to Carry - This whistle has a small and portable body that can be worn on a lanyard around the neck, attached to keys or a backpack. Dimensions: 2.28 x 0.39 (58 mm x 10 mm), weight: 0.35 oz (10 g). MULTIPURPOSE - This is a practical whistle that you can carry when camping, hiking, hunting, fishing, boating and various other outdoor activities. It is also a signal whistle for coaches, referees, linemen and animal handlers. Useful Whistle - This defensive whistle set is suitable for women, men and children.