Add soothing heat to any pet bed! This Pet Bed Warmer provides gentle heat and can be used with any pet bed that measures at least 12" x 15" and has a hook-and-loop or zipper closure. Great for dogs or cats, indoors or out! Plugs into any standard outlet and supplies a safe 24 volts to the heating element. 12 Watts, 24 Volts. cULus Listed. 6-foot cord with durable anti-chew protector. Not One year warranty.