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This app plays a whistle sound in case you do not have a real whistle at hand.
A whistle is needed in many different situations. But you do not always carry a real whistle with you. For such cases the app is intended. It can be used as a prank or a joke.
You can use it as a signal for a sports event or just to annoy your friends. Have fun with experimenting the various uses of this app.
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