Using this faucet is easy. Just wave your hand in front of the touch-free dual sensors, and the water will turn on. It comes with a battery pack of 4xAA alkaline batteries. When the indicator light on the spout shows low battery power, simply replace the batteries. For the water supply, connect it using the tempered line adapter. Remember, this item is non-returnable. To keep your faucet in good condition, clean it regularly with a soft cloth. Avoid using abrasive cleaners as they may damage the Brushed Stainless PVD finish. Since it's certified lead-free, you can use it with peace of mind, knowing it meets safety standards.