[Safety and High Quality Material] Electric lunch box is made of food-grade PP plastic; high temperature resistant and environmentally friendly. Inner container is made of high-quality 304 stainless steel; Totally non-toxic and harmless to human health. [Wide Range of Use] Input with 2 different cables: 220V for home use and 12V/24V for a car. With this electric lunch box, you can not only heat your meal at school, in the office or during travel; but also suitable for drivers who have to drive on the road for a long time. [Highly Efficient PTC Heating Technology] Adopting PTC energy-saving heating components, which provides safety against overheating. Use the low-power heat cycle to keep food at a suitable temperature and to retain its moisture. It normally takes 20-30 minutes to heat the food, which is very efficient and energy-saving. [Large Capacity Tray] 2 removable inner containers separate your different dishes conveniently. The capacity is 0.45 liters and 1.5 liters