WHERE IS THE WATER COMING FROM?

If you look at the faucet in the picture above, it appears to be suspended in mid-air but then water is still running down into the mug.  How can it be?  Where did the water come from?
Simple, there is a tube from the faucet to the mug and the battery operated device would have the water running down the tube which appears as if water is running.  If we try to touch the water, then we will be able to feel the tube and the optical illusion is broken.