Camping Hiking 7in1 Outdoor Multifunctional Survival Whistle Flashlight Compass Thermometer Magnifier Reflector Magnifying Glass Function introduction: 1. Standard high decibel survival whistle 2. Pointing North South Needle Highly accurate and clear at a glance 3. High thermometer Faster and more accurate time to grasp the current temperature 4. Survival reflective signal mirror Using the principle of sunlight reflection to search for and rescue personnel, explain their current location 5. Spark magnifying glass In the absence of a spark in the wild, the principle of sunlight focusing on a magnifying glass can be used to refract sunlight onto dry grass and leaves, creating a spark. 6. High white LED flashlight Emergency lighting systems and LED bulbs with a lifespan of 10000 hours without bright light in the wild 7. Storage tank Before traveling, you can place your own lifebuoy inside: write your name, address, phone number, blood type, etc. so that rescue personnel can grasp your situation in time. Specification Product Name: Seven in One Whistle Color: orange, gray Button batteries: CR1220 2 units Weight: 53 grams including packaging Product size: 109 * 45 * 26mm Single white box size: 12 * 6.2 * 3cm Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!