Clock Runs on Water

This is really unbelievable thing - no batteries - no power - Alarm Clock runs entirely on water. Just fill the clock tank with water and add a drops of lemon juice and a pinch of salt then it runs 6-8 weeks without any battery. It is inbuilt with cache memory chip so it don’t lose the time while changing the water. The water Clock available in 3 colors - blue,orange and green.