Material: Plastic Size: 2.8*10cm / 1.10"*3.94" Color: As shown 1. 3-in-1 Multifunctional Design: Combines a whistle, and thermometer into one device, meeting a variety of emergency needs for outdoor hiking, camping, and more. Lightweight and portable, it's an essential outdoor survival tool. 2. 7-in-1 Whistle Upgrade: Integrates multiple functions, including a flashlight, magnifying glass,thermometer, and survival whistle, for multi-purpose use, enhancing both efficiency and safety in the wild. 3. High-Brightness LED Flashlight: Equipped with a strong illumination function, it provides clear visibility at night, allowing for unexpected darkness and ensuring safety during nighttime travel or rescue operations. 4. Precise and Practical Tools: A built-in helps you determine direction, a thermometer monitors the ambient temperature in real time, and a magnifying glass can be used for fire-starting or detailed observation. Comprehensive and reliable features are included. 5. One lasting and Portable Design: Made of high-strength, environmentally friendly materials, it's drop-resistant and waterproof. Its compact size allows it to be attached to a backpack or keychain, ensuring it's portable for your outdoor activities. Package Includes:1pcs whistle