Metal Whistle

Description

Welcome To Adventure Peeks

Specification:

Material: Aluminum alloy
Color: Random colors (black, red, yellow, silver, purple, blue, green)
Size: Length 46mm * Width 9mm * Ring diameter 24mm/1.8*0.3*0.9in
Piece,2 Piece,5 Piece,10 Piece(optional)
Weight: 4.7g
Universal Whistle Language:
Short notes (one second), long notes (more than 3 seconds).
The interval between command whistles is -3 seconds, and the interval between commands is more than 30 seconds (for example, repeating commands requires an interval of more than 30 seconds).
Two Shorts and One Long: Gather in the direction of the whistle.
Short and long: set off and accelerate forward.
One short, two long: someone falls behind, the front team waits for the back team.
Three Shortcomings: Seek help when encountering difficulties.
Three short, three long, and three short: This is the internationally recognized SOS code.

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