Compasses Xiaomi

7 in 1 Compass Survival Whistle Magnifier Flashlight Emergency Compass Whistle Storage Container High Decibel for Camping Hiking Feature: 1. 7 in 1 whistle: 7 in 1 multifunctional survival whistle, small in size, easy to carry and powerful. 2. Function introduction: 7 in 1, standard high decibel survival whistle; Compass - highly accurate and clear; High thermometer - faster and more accurate time to grasp the current temperature; Survival reflective signal mirror - use the principle of sunlight reflection to explain the current position of the search and rescue personnel; Fire magnifier - when there is no fire in the field, the principle of focusing the sun on the magnifier can be used to refract …