★7 in 1 military survival whistle Includes: Whistle, Compass, Thermometer, Magnifier, Flash Light, Mirror, Storage capsule
★Great for camping, hiking, hunting, fishing, outdoor activities, travel, emergency & survival kits, etc.
★Fire Magnifying Glass:use the sun's reflection principle to explain your position to the searching rescue workers.
★Survival reflective signal mirror (uses sunlight reflection principles providing search and rescue personnel information on your current location)
★Storage: you can write down your name,phone number etc on the paper which can be placed into the whistle storage,in order to make the rescue workers know your information in the first time.