Using this faucet is easy. Just wave your hand near the sensors for touch - free activation. The indicator lights on the spout will let you know if it's powered, activated, or if the battery is low. When the battery runs out, simply replace the 4xAA alkaline batteries. To maintain it, clean the faucet regularly with a soft cloth and mild cleaner. Avoid using abrasive materials as they may damage the Brushed Nickel PVD finish. Since it's a non - returnable item, make sure to check it upon arrival. Also, keep in mind that it complies with ADA guidelines, so it's suitable for a wide range of users.