Using this faucet is easy. Just wave your hand in front of the sensor, and the water will turn on. For the best performance, keep your hands within the sensor's range. When it comes to power, you can use the standard battery pack with 4xAA alkaline batteries. If you prefer, you can also use the optional AC plug-in adapter with battery backup. The low battery LED indicator in the sensor package will let you know when it's time to change the batteries. To clean the faucet, use a soft cloth and mild soap. Avoid using abrasive cleaners as they may damage the brushed brass PVD finish. Make sure to check the spout and sensor regularly for any blockages or debris. This faucet is designed to be vandal-resistant, but still handle it with care. It complies with ADA guidelines, so it's suitable for various settings. Also, since it's certified as lead-free, you can use it with peace of mind.