Compact Design and 7 Liter Large Capacity: It can hold up to 12 soda cans and and can fit tall bottles as well 2 Temperature Settings: Cool down to 41°F-59°F ?if the ambient temperature is 77°F?, or warm up to 140 °F Easy to Carry: Adjustable built-in shoulder strap for easy portability, great for short or long haul road trips, camping or even in the house. Super low-noise design: The working noise is less than 35 dB. It is perfect for keeping food and drinks cool or warm while on the road. Simple Operation: You can use it by simply plug it into your vehicle's 12v DC cigarette lighter outlet