The answer is noisemaker.

We can hold it with one hand easily.

We can buy it at a general shop and a convenience store.

It comes various colors and functions.

For example, one has two buttons on the face and a black string on the side.

When you push one button a light flashes and when you push the other a bell rings to protect yourself.

A black string is connected inside it.

If you pull the string, this noisemaker will keep ringing loud.

Its sound saves you from a dangerous situation.

Since ancient times in Japan, we have thought “water and safety is free.”

Because Japan is island country, so Japan fundamentally had only experienced “safety age”.

But recently, more crimes which target little children are committed.

That is why this noise maker was invented.

We should throw away the idea.

And again we try to make “water and safety” free.

If you are interested in this noisemaker, you should begin to have this!!

And you will feel ease of mind by this.