7-in-1 Multifunctional Emergency Survival Whistle Integrated with 7 tools, including a thermometer, compass, survival mirror, magnifying glass, LED light, capsule compartment and nylon rope. Made of high-quality ABS material, it is drop-resistant and high-temperature resistant. The thermometer and compass scales are clear and wear-resistant, meeting the multi-functional survival needs in outdoor environments. Portable and lightweight design It is 9.7cm long, 2.8cm in diameter and weighs only 100g. It is small and lightweight and can be easily carried in a backpack, pocket or around the waist. It is suitable for camping, hiking and other outdoor activities. Applicable to all outdoor scenarios It is widely used in outdoor sports such as camping, hiking, cycling, skiing, etc. It can also be used as a professional tool for coaches, lifeguards and self-defense personnel, taking into account daily activities and emergency situations. 120dB High-Penetration Whistle The three-layer, super-loud survival whistle design, with a maximum sound pressure of 120dB, has a long penetration distance and is not harmful to the ears. Especially in water emergencies, the whistle sound is easier to hear than the human voice and is an important signal for survival in the water. Weather-Resistant Details Optimized Designed for extremely cold environments. Should the internal whistle ball freeze, dry silicone spray can be sprayed on it to prevent it from getting stuck. The robust and durable structure is matched with the industry-leading tone and vibrato, which provides stable performance even under challenging outdoor conditions and provides reliable protection for emergency rescuers.