Safety: works with running water: no batteries or cables are required, the color-changing LED works with running water, no batteries required. 3 Colors: This illuminated hand shower head offers a delicious and fantastic shower turning 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 extended use. Surface mirror treatment, elegant and textured, soft and flat, comfortable feeling, shock design to show the quality of life. Temperature shown: color change of the temperature of the LED shower head. The color changes by the water temperature sensor, the shower head has a color of LED lights that automatically changes according to the water temperature. 0 ~ 29 C: blue; 30 ~ 41 C: green; 41 C: red Easy to install: hand shower head. The standard size of the connecting part is suitable for any shower hose, just unscrew the old shower head and tighten it.It turns on in minutes without tools.