Hello.

We have an announcement regarding whistles.

Before sending out packages, we use an air inflator to test whether each whistle is defective.

Due to the nature of the product, we ask for your understanding that it cannot be tested by actually blowing in the air.

If the whistle makes sound when the air is injected by the air inflator, it will be classified as a normal product.

Please note that depending on the location of the silicone inside the whistle, the loudness of the sound may vary.

Therefore, when testing by yourself, we ask that you test with abdominal breathing considering the case of an actual crisis situation.

Currently, GKIDA is developing a whistle that makes a loud sound even if it is blown small, so please look forward to the upcoming renewal(to be announced).

Thank you.