Survive Survivor Survive life whistle, the whistle has three holes, each hole sound is different. Together sounds sweet. Is a good low-cost products

There are three holes in the whistle, each sound is different

Product Name: Survivor Multi - audio Survival
Material: high quality plastic
Length: 70 mm
Width: 27 mm
Thickness: 7 mm

Outdoor travel, you can confirm the position, to avoid getting lost, looking for companions, and so help.

Want to have an ideal outdoor travel, do not forget to carefully prepared before departure Oh

Do not forget to check before the next whistle to bring

The use of the survival of norms

Survival of the whistle does not have to be used in distress, for example, say hello to the front of the back, to determine how far apart, and determine the direction of the other source in which direction, etc. ... ... However, There is a problem, that is, sometimes climbing when the rise of the whistle blowing, blowing more, we did not feel anything, and heard others do not want to blow blowing, and go their own, then once who's foot twist, Or where the need to help, or pull the middle of the new donkey encounter intersection do not know how to go, and whistle when no one is very anxious to respond to things, because other people thought that nothing happened, their busy quietly hard Of the pull mill, not too much time to Dali, like a wolf to the story.

Symbol Description: ● Short tone (within one second) ■ ■ Long tone (more than 3 seconds) ■ The interval between the commands is 2 to 3 seconds and the interval between instructions is more than 30 seconds (for example, )

Communication (T): ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ~ ~ Similar)

Collection (U): ● ● ■ ■ ■ (two short and one long) to the direction of the whistle collection (with the call set friends ~ ~ ~ ~ similar)

Forward (V): ● ■ ■ (a short one long) break issued on behalf of the team starting, moving forward on behalf of the accelerated forward (with the propaganda red ~ ~ ~ ~ similar)

(W): ● ■ ■ ■ ■ ■ (a short two long) for the team to travel long distances, the former team to wait for the team (with the call, please wait ~~~~ ~ ~ ~ ~ similar)

(S): ● ● ● (three short) when the need to seek help when the issue, the signal received by the communication tone (T) replied that will go to support (with shouting urgent ME ME! Similar)

(SOS): ● ● ● ■ ■ ■ ■ ■ ■ ● ● (three short three long short) This is the international common SOS code, please memorize