Made of ABS and TPR, eco-friendly multi-color led shower head, safe and durable for long term use.Kartokner e light emitting diode light circle shows blue, green light color or red according to the corresponding water temperature range (0~29: blue; 30~41: green; >41: red); Kartokner people can relieve pressure and eliminate fatigue by color conversion.Kartokner LED shower head automatically changes the light colors and more colors are displayed. With the digital temperature display, it is possible to have real-time control of the water temperature.No batteries, color bathroom shower hand shower no wire required: color changing Kartokner ED are powered by running water, no batteries needed.A great home bathroom shower head sprayer replacement, easy to install, simple and practical.