Features:No batteries， no wire needed.Fits all standard connectors， easy to install.The light is activated by water pressure and turns off automatically with the water.7 colors are displayed circularly and gradually when water flow (the light colors are NOT affected by water temperature).Offers you delightful bath and wonderful experience.Ideal for bathroom to make it fantastic.Specifications:Case material: ABSLED emitting color: Multicolor change automaticallyConnection standard: G1/2Shower head diameter: 9cm / 3.54"Item size: 9.7 * 9 cm/ 3.81" * 3.54"Total weight: 185g / 6.5ozPackage including:1 * LED light shower head