This versatile 7-in-1 whistle comes with a nylon lanyard and functions as a high-decibel survival whistle, compass, thermometer, signal mirror, magnifying glass, LED flashlight, and information capsule. Made of ABS, ergonomically designed, high-quality materials can resist harsh environments. The high-decibel and high-volume design allows the whistle to make a loud sound with a single blow. It is integrated when not in use, and the required parts can be quickly disassembled when in use, making it easy to carry and store.
