Using this faucet is easy. Just wave your hand in front of the touch - free dual sensors, and the water will flow. The battery pack with 4xAA alkaline batteries powers the faucet. Keep an eye on the indicator lights on the spout. If the low - battery light comes on, replace the batteries promptly. When it comes to water supply, make sure the tempered line adapter is properly connected for a stable water flow. For maintenance, clean the faucet regularly with a soft cloth and mild cleaner. Avoid using abrasive materials as they may damage the Brushed Brass PVD finish. This faucet is certified lead - free, so you can use it with confidence for your daily needs.