Using this faucet is easy. Just wave your hand in front of the touch - free dual sensors, and the water will flow. The indicator lights on the spout will let you know if the faucet has power, if it's activated, and when the batteries are low. When the battery indicator lights up, simply replace the 4xAA alkaline batteries included with the faucet. For maintenance, clean the faucet regularly with a soft cloth and mild cleaner to keep the polished chrome finish looking shiny. Make sure the tempered line adapter is properly connected to ensure a steady supply of tempered water. Also, follow ADA guidelines when installing the faucet. This faucet is certified lead - free, so you can use it with peace of mind.