Safety: works with running water: no batteries or cables required, the color-changing LED works with running water, no batteries required. 3 colors: This illuminated handheld shower head offers a delightful and fantastic shower by transforming the water jet into a beautiful cascade of colors. Material: digital shower head, made of ABS and TPR material, eco-friendly, safe and durable for long time use. Surface mirror treatment, elegant and textured, soft and flat, comfortable feel, shock design to show the quality of life. Temperature shown: LED shower head temperature color changing. The color changes by the water temperature sensor, the shower head has LED lights color that automatically changes according to the water temperature. 0 ~ 29C: blue; 30 ~ 41 C: green; 41C: red Easy to install: handheld shower head. The standard size of the connecting part is suitable for any shower hose, just unscrew the old shower head and tighten it. Connects in minutes without tools.