Features:
1. High-quality plastic, compact and portable, easy to carry, and can be used for a long time.
2. The whistle is clear and loud, and the transmission distance is long for ring mirrors such as calling for help, recruiting companions, and survival in the wild.
3. Quick hang can be hung on tents, equipment, kettles, backpacks, keychains, and other accessories.
4. Powerful, wear-resistant, practical, and convenient.
5. Suitable for outdoor activities such as camping and mountaineering.
Specification:
Material: Plastic
Size: 7.0*2.7 *0.7 m
Net weight: 12g
Color: Black, green
【Signal Rules】
●Short tone (within one second);
■ Long tone (more than 3 seconds); the whistle interval within the command is 2~3 seconds, and the interval between commands is more than 30 seconds (for example, it takes more than 30 seconds to send a command repeatedly)
●●■ (two short and one long) gather towards the whistle;
●■ (one short and one long) to accelerate;
●■■ (one short and two long) someone stays, the front team waits for the back team;
●●●(Three short) Seek help if you encounter difficulties;
● ● ● ■ ■ ■ ● ● ● (three short, three long, and three short) This is the internationally accepted SOS code.