3 Color LED Handheld Bathroom Digital Temperature Display Shower Spray Head Description: The shower spray head is no batteries, no wire needed: The color changing LED are powered by running water, no batteries needed. With 3-colors changing LED: This light up handheld shower head offers you a delightful and fantastic shower by transforming the stream of water into a beautiful waterfall of color. Features: and . 3-colors changing LED: This light up handheld shower head offers you a delightful and fantastic shower by transforming the stream of water into a beautiful waterfall of color. No batteries, no wire needed: The color changing LED are powered by running water, no batteries needed. Water tempreature sensor: Shower head features color of LED lights changes automatically according to water temperature. (0~29℃: blue; 30~41℃: green; >41℃: red) Easy to install: Connects in minutes to any standard overhead shower arm, no extra tools required. Digital temperature display, you can have a real-time command of the water temp. Specification: Condition: Material: ABS + TPR Color: White Male Thread: G1/2 LED Light Power Supply: Hydroelectric Generation(no extra battery needed) Light Color: Blue(0~29℃); Green(30~41℃); Red(>41℃) Size(H x W):  24 x 12cm / 9.45 x 4.92in(appr.) Packaged included: 1 x Temperature Control 3 color LED Light Shower Head Notice:Please note that there is a little noise when using the product, please use it with confidence. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.