【Energy Saving】No additional power source or battery required, the water flow can power the LED lighting. 【Color Changing】The color will change according to the temperature of the water flowing through it. Made of ABS and TPR, it is eco-friendly, safe and durable for long term use. 【Display Temperature】The LED light ring shows the light color of blue, green or red according to the corresponding water temperature range (0~29℃: blue; 30~41℃: green; >41℃: red); people can convert by color. to relieve stress and relieve fatigue. 【Process】Multi-layer electroplating treatment ensures corrosion resistance and smooth surface. 【Easy to Install】Great replacement for shower head sprayer, easy to install. The shower head handle connects directly to the shower hose.