【Multifunctional Whistle】This 7-in-1 safety whistle has 7 functions, including whistle, compass, thermometer, signal light, magnifying glass, reflector, and a sealed storage box for easy use. 【High Quality】Made of premium ABS material, this emergency whistle is drop-resistant and heat-resistant. Lightweight and portable, safe and reliable, its excellent airflow design ensures normal function in various environments. 【Highly Practical】This 7-in-1 emergency whistle is suitable for various outdoor activities such as cycling, camping, hiking, mountaineering, jogging, boating, hunting, fishing, and exploration. You can use the above functions to handle various emergencies. The unique sealed storage box can be used to store important personal notes. 【Easy to Carry】This survival whistle comes with a long enough lanyard to be hung on a backpack, belt, or around the neck for easy transport. 【Perfect Gift】Anyone interested in adventure, hiking, or camping needs this 7-in-1 multifunctional outdoor safety whistle, making it a perfect birthday gift for men, husbands, and fathers. Please note: 1. Due to different lighting and screen settings, the product color may differ slightly from the picture. 2. Due to manual measurement, there may be slight errors in size.