Holds 2.2 liters (0.58 gallons) | Waterproof ON/OFF switch with light indicator that shows when the product is on | Temperature control: 97℉ – 109℉. Chew resistant cord ensures safety for pets | No water automatic protection function---When the Pet heated bowl without water, it will automatically enter the standby state, which will stop heating and protect the pet bowl；You can use continuously for 24 hours, don't need to be opened and closed to switch every day, when you go out and there is no water in the pet heated bowl, you don't have to worry about pet bowl will appear problem, it will automatically stop heating + enter standby state | The Petfactors Thermal Water Bowl is perfect for any outdoor animal that’s thirsty during freezing cold winter weather - Use to prevent water from freezing.