The Koolatron Kargo Wheeler takes your cooler to the next level. It is specially designed with heavy duty wheels and a convenient handle, which lets you easily wheel your drinks and food to your perfect picnic spot or campsite. No need to burden yourself with picking up or carrying a packed cooler. This is the perfect option and best way to reduce stress on your body. The cooler plugs directly into any 12 volt outlet and delivers the cooling power of a 10 pound block of ice through solid state thermoelectric technology. Thermoelectric cooling keeps food and drinks dry and cold, and no space is wasted by ice. The Kargo Wheeler is the perfect companion for tailgate parties and sports games and practices. Koolatron coolers use NASA-inspired technology to provide reliable and quality cooling. The Kargo Cooler can also double as warmer. Just flip the plug and you have a warmer box that can keep food and drinks heated to 55?C (100?F). Koolatron is a global leader in thermoelectric technology and has proudly manufactured 12 volt coolers in North America for over 30 years.