- Koolatron 27 L (29 qt) portable cooler: With a 27 liter (29 quart) capacity that can fit 48 standard soft drink cans, this 12V powered cooler/warmer has plenty of room for all your needs. - Versatile two-way design: This unique cooler's secure sliding lock and removable shelf/divider let you use it as a classic chest-style cooler or standing upright as a front-opening portable mini-fridge. - Warming & cooling functions: Dual-function thermoelectric technology efficiently cools to 40°F (22°C) below the surrounding temperature or warms to 135°F (57°C). - Durable materials & construction: Injection molded hard exterior protects contents and stain-resistant interior is easy to clean. Advanced insulation ensures long-lasting cold retention. - Plugs into any 12V outlet: Convenient travel cooler/warmer comes with a 12V DC (5 Amps/60 Watts) power cord to plug into your car, truck, or boat. It is also compatible with AC power (adapter not included as it was/still is as far as I know, sold separately).