Using this faucet is easy. Just wave your hand near the touch - free dual sensors to activate the water flow. The battery pack with 4xAA alkaline batteries powers the faucet, and the indicator lights on the spout will let you know if the power is on, when it's activated, and when the battery is low. When it's time to replace the batteries, simply open the battery compartment and swap them out. As for maintenance, wipe the faucet regularly with a soft cloth to keep the Brushed Brass PVD finish looking great. Avoid using abrasive cleaners as they may damage the finish. Also, make sure the water supply is clean to prevent clogging of the 0.35 gpm silicone tip flow control module. Remember, this is a non - returnable item, so take good care of it.