Using this Bradley touchless faucet is easy. Just wave your hand in front of the sensors, and the water will turn on automatically. It's designed to save water with its low flow laminar options. When it comes to power, you can use the standard 4xAA alkaline batteries in the battery pack. If you prefer, you can also use the optional AC plug - in adapter with battery backup. Keep an eye on the LED indicator lights in the spout. They'll tell you if the faucet is powered, activated, or if the batteries are running low. For maintenance, wipe the faucet regularly with a soft, damp cloth to keep the Brushed Black Stainless PVD finish looking great. Avoid using abrasive cleaners as they can damage the finish. Since it's vandal - resistant, it can withstand normal wear and tear, but still treat it with care. Remember, this is a non - returnable item, so make sure it meets your needs before installation. And because it complies with ADA guidelines and is lead - free, you can use it with confidence in various settings.