Features:1) Product name: LED Shower Head2) This product will change its color by detecting water temperature3) When water flows down, the LED will light instantly and automaticallyA. When water temperature is ≤32 degrees centigrade, Green color will show automatically B. When water temperature is between 33~41 degrees centigrade, Blue color will show automatically C. When water temperature is between 42~45 degrees centigrade, Red color will show automaticallyD. When water temperature is ≥ 46 degrees centigrade, Red color will flash immediately.  4) No battery needed

LED Shower Head