Requires no battery: LED lights are powered by running water, do not require a 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: Small, dense holes designed to release water firmly, gently, and with a consistent flow. Improved pressure, and 30% water savings. Made of environmentally friendly materials: ABS material, with a transparent design and a high-density filter that is removable for easy cleaning. Strong filtration: Negative ion filter purifies water. Filtration by purification of integrated negative ions, heavy metals, chlorine, bacteria, fluorine and impurities, improves the quality of your water.