Feature:1. Military standard high decibel survival whistle, sound inner bin, make the whistle longer and more harsh, sealed bin, nylon lanyard, more convenient to carry.2. Compass, high accuracy, clear at a glance, high thermometer, faster and more accurate to grasp the current temperature.3. Survival reflective signal mirror, flame magnifier, high white light LED flashlight.4. Lightweight and practical, cylindrical design, especially suitable for outdoor using.5. Not only has whistle function, also has lifesaving function, combined seven functions: whistle, compass, thermometer, magnifying lens, reflector, LED strong light, small storage bin.Specification:Condition: 100% Brand NewItem Type: Camping Survival WhistleMaterial: High Quality ABS MaterialColor: Military GreenQuantity: 4PCSBattery Type: Button BatteryBattery Model: CR1220Voltage: 3VBattery Capacity: 40mAWeight: Approx. 184gLength: Approx. 9.8cm/3.86inchDiameter: Approx. 3cm/1.18inch Package List:4 xCamping Survival Whistle