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[Product Name] Whistle Mini Whistle Small Aluminum Alloy Whistle Life Saving Whistle Training Whistle

• [Material] Aluminum alloy (chain ring is subject to actual product)
• Can do LOGO, dear.
• [Specifications] Length: 45mm, Diameter: 8mm, Key Ring Diameter: 2.4CM
• Weight: 4 grams per piece
• Color: Multi-color, random shipping, no color selection (specify color in note).
• [Features] Can be hung on a backpack or a key ring, fashion and practical! When communicating with companions in the wild, or when in need of help in case of danger or accidents, a small whistle can be very helpful. Outdoor experts recommend that each person should have two life-saving whistles when participating in outdoor activities, carry one with you and store one in your backpack in case of an emergency.

Suitable for outdoor survival and training, the whistle plays a significant role in emergency situations in the wild, such as wilderness rescue. Of course, we have better communication devices to replace whistles, but the role of the whistle should not be underestimated. Once modern communication devices lose power supply, encounter signal blocking areas, military restrictions, or when orienting in water, it is the time for the whistle to shine. The language of the whistle is rich and irregular, without a standard and unified system for its own reasons. For example, when you encounter frequency interference with other team members and cannot tell them to switch to another channel, or when we discover a situation in a search and rescue operation and do not want others to hear, it is the time for the self-composed whistle language to take effect. People outside do not understand the meaning, which is the role of the implicit whistle language.

In addition, be aware that even if some people use whistle language, they may forget the rules of use in times of tension or crisis. When hearing someone blowing a whistle endlessly, it should be noticed!

Here is the general whistle language:

● Short tone (one second); ■ Long Vowel (over 3 seconds);

The whistle sound within the command interval is 2~3 seconds, and the interval between commands is more than 30 seconds (for example, if you need to repeat the command, you need to wait more than 30 seconds).

● ● ■ (两短一长) 向哨音的方向集合

● ■ (one short and one long) - Set off, accelerate forward;

● ■ ■ (一短两长) Someone fell behind, the front team waits for the rear team.

● ● ● (三短) - 遇到困难寻求帮助

"● ● ● ■ ■ ■ ● ● ● （三短 三长 三短） 这是国际通用的SOS代码" This is the international SOS code: ● ● ● ■ ■ ■ ■ ● ● ● (three short, three long, three short).

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