No need battery,water power. Temperature Detectable (included Green,Blue,Red color.) BRASS LED Basin Mixer,tap,faucet(YS-LED2119)Not only faucet mouth tap,but whole faucetMaterial:Brass,chrome finished.Temperature Detectable (included Green,Blue,Red color.) Color box: 315*195*95MMExterior carton: 650*410*400MM Weight:1.80kg/color box 30.0kg/carton BRASS LED Basin Mixer,tap,faucet(YS-LED2119)