Key features:1，Water saving.2，No batteries and external power supply， it will illuminate after water flows down.3，The sensitive shower head light will change colors according to the temperature of water.4，The color's change remind you the water's temperature.5，Transforming the stream of water into a beautiful waterfall of light.6，LED color automatically changes according to water temperature:Cold water (temperature below 31?C)， LED light color will be Green;Warm water (temperature between 32~38?C)， LED light color turns Blue;Hot water (temperature between 39~45?C)， LED light color turns Red;When the water temperature is higher than 45?C， the Red light will start flashing， which means that the water is too hot and please be careful.7，With those magical anion mineral balls in it， it is no longer just a shower head nozzle.Anion mineral balls have the following functions:Massage: pressurized body spa skincare;Healthcare: Negative ions spa function;Percolation: Material in-handle can effectively remove the chlorine in tap water when bathing;Environment protection: It is detachable and easy to clean;Health bath essential， pressurize and saving water 40% Specifications:Design: this item is designed with external thread with a diameter of 20.5mm (universal interface)Multi-Function hand held shower head nozzleMaterial: Polycarbonate handle and stainless steel panelHigh technology platingWeight: L: 250g; Package Included: 1 x Anion Handheld Shower Head Nozzle (Not included hose and holder)