This Heated Dog Water Bowl Electric Device will keep your pet’s drinking water warm throughout freezing weather conditions! It is a simply plug-in device! You can choose from different plug types. This bowl keeps the water temperature at 28 ℃ to 35 ℃. There is a simple on and off switch; make sure to turn it off when there is no water in the bowl. The bowl can hold up to 2.2 liters of water.