Yanksmart&reg; Water-Powered 3 Color Changing LED & 360 Degree Spray Waterfall Bathroom Lavatory Mixer Tap Vessel Faucet Chrome Gives an elegant and classy look to any room Polished Chrome finish .Water Power.do not need the battery LED do Not need battery, water powered.the product change color by detecting the temperature Drip Free Ceramic Disc Cartridge For Smooth And Long Lasting Operation Complete with hot & cold water hoses & accessories Comes with 24 months manufacture warranty