This compass whistle can act as an emergency whistle and a compass when you do outdoor sports; Coming with a strap, the whistle can be hung on your neck, and you can also replace it with the strap you like. Carefully designed with appropriate tone and intensity, the whistle with a compass can bring you a loud and nice sound feeling; Manufactured of quality plastic material, this whistle is reliable and colorfast to use. This survival whistle can be a reliable and effective tool for outdoor camping, summer camping, and P.E. You can wear this whistle-compass combo to take part in assorted activities, such as camping, hiking, running, racing, cycling, skiing, and other outdoor activities, widely suitable for coaches, sports, teachers, lifeguards, and others for protection and self-defense.