7-in-1 Multifunctional Emergency Survival Whistle includes the following features :

• Liquid-filled compass ensures quick, reliable navigation and directional readings
• Integrated thermometer tracks Celsius and Fahrenheit temperature swings to help prevent hypothermia or heat stroke
• High-decibel safety whistle projects a clear, high-frequency distress tone to alert rescue teams from long distances
• 2 LED beams provide immediate emergency illumination
• Magnifying lens flip-out optical magnifier serves as a solar fire-starter or tool to read fine map details
• Reflecting mirror can bounce sunbeams to passing aircraft or search crews
• Sealed storage tube safely houses personal medical notes or emergency tinder dry
• Attached a carry lanyard

Material :

• ABS housing

Size closed :

• Length of 12.1 cm x Width of 2.15 cm
• Weight of 36.5 grams