The small size spruce and sand colored pet Sleeper has comfortable therapeutic heat and orthopedic foam construction. Detachable chew resistant power cord with a safe 12 volt power adapter. Has a removable luxurious cover that's machine washable. Includes a pocket attachment for storing the power cord and adapter. For use in the US only. This unit is compatible with all US 110v outlets and are not to be used with 220v international voltage.