Product description
1. High decibel whistle, loud, up to 150 decibels, spread farther.
4. Nylon lanyard (more convenient to carry, the length of the rope is about 40cm (hanging on the neck).
5. Get used to participating in sports events, asking for help, training pets, etc.
Product name: Three-in-one whistle (compass, thermometer)
Wilderness Rescue Whistle Tool