Thermostatic Control & Frost Protection: The 30W heated water bowl automatically stops working when heated to 55°C and starts when the water temperature drops, ensuring the water does not freeze even at -20°C, providing drinking water for dogs and other outdoor animals. Larger Capacity: The 3.2L capacity can meet more drinking needs and is widely used for stray dogs, stray cats, chickens, ducks, rabbits, squirrels, etc. This makes the pet bowl an ideal choice for providing constant water in outdoor environments. Disturbance-Free Design: The heated dog water bowl has no indicator, which can make small animals nervous, while the indicator-free design helps them approach the drinking water more relaxed. No on/off button design prevents animals from accidentally touching it and improves safety. Safe and Durable: The outdoor heated pet water bowl is made of premium plastic, environmentally friendly and harmless, and produces no toxic substances after heating.