This application makes it very easy to make a loud whistle sound. All you have to do is tap the screen to make a loud whistle sound. You can use it to prank your friends or wake them up.

All the sounds are very realistic and have a lot of volume. They are very easy to use, just tap the screen to play the sound and then tap the power button to enable the infinite playback.

You can also use the app in the background, you just have to use the power button to enable the background mode.

This is a really funny application that can be used to prank or wake up your friends.