Using this faucet is easy. Just wave your hand near the touch - free sensors to activate the water flow. For the power, the included battery pack with 4xAA alkaline batteries will keep it running. When the indicator light on the spout shows low battery, replace the batteries promptly. Since it's touch - free, it's great for maintaining hygiene, especially in public areas. As for maintenance, clean the faucet regularly with a soft cloth and a mild cleaner to keep the polished chrome finish looking shiny. Make sure to check the water supply connection periodically to avoid any leaks. Also, note that this is a non - returnable item, so handle it with care.