When it is trapped in a disaster, when it is ready to be taken away by a stranger, it will reach clearly even when blowing light and exert a loud sound.
The cycol frequency is 3150Hz which produces 3150Hz sound that is most easy to reach to your ears. This is considered the most accessible sound in the crowd or noise, and it can draw the attention of many people in a single blast.
Compact and lightweight. Perfect for mobile phones, as well as a bag or key holder, it can also be easily attached to a name strap, so you can carry it with confidence at any time. Even if attached to a strap, it wont float.
The whistle itself is angled so it wont float diagonally when attached to the strap.
Size: 1.9 x 0.8 x 0.3 inches (47 x 2
Weight: 0.08 oz (2
Material: ABS resin.