We received this trash can last Monday and we're still amazed by it. It is like knowing when you need to dump trash and opens the lid for you. Our 8 years old likes to help out cleaning after meals just to use the trash can. It comes with AC adaptor so we do not need to buy any battery. UPS delivered it in just 5 days and packed in a great package with a gift box inside. We're thinking about giving it as a housewarming gift.