HotelSpa 10 Inch Color Changing Rainfall LED Shower Head with 15 Inch Arch Height Adjustable Extension Arm. Powered by running water. LED lights change color according to water temperature (Chrome) HotelSpa LED Shower Head with Extention Arm is the largest and most advanced height-adjustable LED showerhead ever created  It has Extra-long 15 Inch Arch-design extension arm that extends fully over your head and adjusts to your height  Ergonomic High-fashion Design adds style and ambiance to your bath decor Giant 10 inch LED Rainfall Shower Head with Reflective Chrome Face and LED Perimeter Rim is Powered by running water, no batteries  Color of LED lights changes automatically according to water temperature Lightweight and Reinforced Extention Arm has Chrome Plated ABS Plastic Ends  Solid Brass Screws and Hollow Stainless Steel Oval Profile Arch Arm Profile  Large Wing Nut with Brass Inserts for easy and reliable hand tightening Extra-long 15 Inch Elegant Arch-Design Extention Arm is Angle Adjustable, provides 3 ft. vertical movement  Wall-Mounted Installation  Connects in minutes without tools EASY TO REGISTER WARRANTY: Hassle-Free US Limited 1 Year Warranty with LIVE customer service representatives in US.