Shell Sound

Have you ever put a sea shell close to your ear? You will hear the sound like the wind blow and they call it is the breathe of the sea.
This app can also do the same thing. You open it and put your phone close to your ear, you will hear the sound like the wind blow.
It ‘s really don’t make any sound, even you put your mobile phone volume to max, you can’t hear any sound if you don’t put the phone close to your ear.
So why can you hear the sound? I will not tell you.
This app is a joke, just for fun purpose only.