Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•High-decibel survival whistle, clear sound, easy to hear
•With compass, help you find right direction
•With nylon tied rope, 40cm length, can be hung on the neck, easy to carry
•With thermometer function, quickily and accurately show temperature
•Suitable for outdoor travel, hiking. camping, outdoor training and other survival activities