7in1 Camping Survival Whistle Compass Thermometer LED Flashlight Fire Magnifier. Features: 1. Standard military-regulated high-decibel survival whistle. 2. Compass (high accuracy, clear at a glance). 3. High-precision thermometer 4. Survival reflective signal mirror (Using the principle of sunlight reflection for rescue personnel to find your current location). 5. Tinder magnifying glass (When there is no flame in the wild, you can use the magnifying glass to refract the sunlight to the dead grass and leaves to produce flame) 6. High white light LED flashlight 7. Sealed storage compartment (You can put your name, address, phone number, blood type, etc. in it so rescuers can grasp your situation quickly. 8. Nylon lanyard (more convenient to carry around). Item is new, with a few scuffs and scratches on it. Please see all pictures provided in this listing prior to purchasing.