I have a portable cooling and heating refrigerator for sale From the American company Black & Decker Refrigerator condition: good External appearance: good Does the refrigerator cool: yes Does the refrigerator heat: yes Connection method: via car cigarette lighter or battery Note: The lighter with the wire broke, so I made it connect directly to the battery (as shown in the picture). If you want to install a lighter, you can buy one and install it.