Product Name: LED Shower HeadType: Handheld Pressurized water saving washowerFeature:Can change colors without battery.Material: ABS PlasticEasy to install with stone balls filters

The difference of 3 colors shower head and multi colors shower head:

3 colors LED shower heads:--Temperature control;--Changes colors according to the water temperature,Green color(temperature <30℃/85℉),Blue color(31℃-39℃/85℉-105℉),Red color(40℃-50℃/105℉-120℉).--When the water reaches these temperature ranges, only one color led light comes on.Multi colors LED shower heads:--NO temperature control.--Automatically flashes multi colors continuously in any water temperatureBoth no battery, very safe, using water flow to generate electricity.