Using this faucet is easy. Just wave your hand in front of the sensors for touch - free activation. The battery pack with 4xAA alkaline batteries powers the faucet. You can check the indicator lights on the spout to know the power status, when it's activated, and if the battery is low. For water supply, use the tempered line adapter provided. When it comes to maintenance, keep the faucet clean with a mild soap and a soft cloth. Avoid using abrasive cleaners as they may damage the Brushed Nickel PVD finish. Also, note that this is a non - returnable item. Remember, this faucet is designed to comply with ADA guidelines and is lead - free, so you can use it with peace of mind.