Using this faucet is easy. Just wave your hand near the sensors for touch - free activation. The faucet comes with a battery pack of 4xAA alkaline batteries as the power source. When the indicator light in the spout shows low battery power, simply replace the batteries. For water supply, connect the tempered line adapter to the tempered water source. As it's a non - returnable item, make sure it meets your needs before purchase. To keep it in good condition, clean it regularly with a soft cloth. Avoid using abrasive cleaners as they may damage the Brushed Black Stainless PVD finish. This faucet complies with ADA guidelines, making it accessible for everyone, and is certified lead - free, ensuring your safety.