- 【Emergency whistle material】stainless steel, the surface is colored with anodic oxidation technology, hard to fade and can be used longer.
- 【 Functions and features】double-tube design makes the sound much louder, equally as two. The volume is much bigger than ordinary outdoor whistles.
- 【Advantages】lightweight, comes with key holder, easy to carry and can be hanged on tents, equipments, bottles, backpacks and etc;
- 【Exterior features】humanized exterior design, more interesting and attractive;
- 【Can be used at】wilderness survival, outdoor activities, climbing, adventures, or for at home emergencies.
Details: Emergency whistle material：stainless steel, the surface is colored with anodic oxidation technology, hard to fade and can be used longer The whistle sound is crisp and loud, and the transmission distance is far away for calling for help, recruiting companions, and survival in the field; 【Signal rules】 ● short sound (within one second); ■ long sound (more than 3 seconds); The command whistle interval is 2~3 seconds, and the interval between commands is more than 30 seconds (for example, it takes more than 30 seconds to repeat the command) ● ● ■ (two short and one long) gather in the direction of the whistle; ● ■ (One short and one long) Start and accelerate; ● ■ ■ (one short and two long) Someone left the team, the former team waited for the team; ● ● ● (three shorts) Seek help when encountering difficulties; ● ● ● ■ ■ ■ ● ● ● (three short three long three short) This is the internationally popular SOS code.
Package Dimensions: 3.5 x 2.5 x 0.5 inches