This product the LED and digital display power by water flow. There is a hydroelectric generator inside the product. When there is enough water flow, it will generate a safe power supply for LED and Digital displays. If you would like to take a comfortable bath every day, you are in the right place. This shower panel tower system stainless steel 4 in1 multi-function shower panel with spout rainfall massage jets tub spout hand shower for home hotel resort type can do it for you. The sprinkler design makes you comfortable when taking a bath. It can bring you a good feeling from head to toe just like a massage. It is really a good assistant to ease fatigue and tiredness. What a good shower product for you! Come on and never miss it. Finish: Black