Using this faucet is easy. Just wave your hands under the sensors, and the water will turn on automatically. The touch-free design helps keep the faucet clean and reduces the spread of germs. For power, you can use the included battery pack with 4xAA alkaline batteries. If you prefer, you can also use the optional AC plug-in adapter with battery backup. When the low-battery LED indicator lights up, it's time to replace the batteries. To maintain the faucet, clean it regularly with a soft cloth and mild detergent. Avoid using abrasive cleaners that could scratch the polished chrome finish. Make sure to check the water supply connections periodically to ensure there are no leaks. This faucet complies with ADA guidelines and is lead-free, so you can use it with confidence.