Requires no battery: LED lights are powered by running water, do not require battery or power supply, when you open the shower head, the LED water pressure will activate. With 7 colors, enjoy wonderful bathrooms and beautiful colors. Easy and quick installation: installation without tools, the shower handle connects directly into the shower hose, suitable for all types of connectors.Excellent Water Pressure: Dense small holes designed to release water firmly, gently, and with a steady flow. Improved pressure, and 30% water savings. Made of eco-friendly materials: ABS material, with a transparent design and a high-density filter that is removable for easy cleaning. Strong filtration: The negative ion filter purifies the water. Filtration by purification of integrated negative ions, heavy metals, chlorine, bacteria, fluorine and impurities, improves the quality of your water.