This is a dual-power cooler that you can run on a 12 volt DC power source—like your vehicle’s cigarette lighter—or on 220volt AC current with the included adapter for household outlets. Specification: Product Name: Car 7.5L Portable Heating and Cooling Box Product material: ABS Input voltage: 12V/220V Power: 48 (W) Heating temperature: raise to about 65°C Cooling temperature: about 20°C lower than ambient temperature Minimum cooling temperature: -10 (℃) Product size: 31*29*17cm The package contains: 1*Car refrigerator 1*strap 1*1.6m cigarette butt line 1*Converter Notes: 1.Do not change the switch from hot to cold or vice versa abruptly. Allow the unit to stay OFF for at least 30 minutes before switching the function. 2.Do not use or store electrical appliances inside the food compartment. 3.The fridge is designed to keep the items warm/hot. It is not designed to heat up cold or frozen items/foods. 4.Prevent the fan from malfunctioning or being stuck. Avoid using towels, clothes and the like inside the machine as this could produce heat and may cause a fire.