Tri-Frequency Outdoor Survival Whistle

Portable multi-audio whistle, different blowing can make different sounds, more recognizable. Made of high-quality plastic, lightweight and easy to carry, easy to use. The whistle comes with a lanyard to secure the whistle for easy movement. Well-polished, comfortable grip, portable and compact. When traveling outdoors, avoid getting lost and find companions. Can be used for various activities, field survival, military training, etc.