Using this touchless sensor faucet is easy. Simply wave your hand in front of the dual sensors to activate the water flow. The indicator lights on the spout will show if the faucet is powered, activated, or if the battery is low. Make sure to replace the 4xAA alkaline batteries when the low - battery indicator comes on. When it comes to maintenance, clean the faucet regularly with a soft, damp cloth to keep the Brushed Nickel finish looking its best. Avoid using abrasive cleaners as they can damage the PVD finish. This faucet is designed to be durable, but in case of any issues, refer to the product's warranty. And remember, this item is non - returnable, so handle it with care.