7 in 1 Survival Whistle High Decibel Rescue Whistle with LED Light Thermometer Compass Survival Reflective Signal Mirror

Origin:China Material: plastic Button battery: cr1220 (2 pcs) Size: 109*45*26mm Function introduction ： 1. Standard high decibel survival whistle 2. Pointing to the north (south) needle (high accuracy, clear at a glance) 3. High temperature thermometer (grasp the current temperature faster and more accurately) 4. Survival reflective signal mirror (using the principle of sunlight reflection to explain their current location to the people who came to search and rescue) 5. Fire magnifying glass (When there is no fire in the wild, you can use the principle of sunlight focusing on the magnifying glass to refract sunlight on dead grass and leaves to produce fire. 6. High-white LED flashlight (under the premise that there is no bright light in the wild, the life of the lighting system and LED bulb for emergency use is 10,000 hours) 7. Storage tank (you can put your own life-saving strip in it before traveling: write your name, address, telephone number, blood type, etc. so that rescuers can grasp your situation in time)