Automatic water dispenser that works on charging, it works even if the electricity is off as long as it's charged. It has 3 water depths and 3 times for the machine cleaning cycle. No app or anything needed, easy to operate and can last for a week or more without refilling or cleaning, very convenient. Used for 3 months. For sale, its price is shown, and I bought it from Shein, and it's currently sold out. Bidding starts at 40.