electric lunch box, which is a portable food warmer that can heat up meals.
It is a multi-functional device that can heat, steam, and cook food.
Some models have a capacity of up to 2 liters and may include multiple inner containers.
The heating process uses steam and can take around 15-60 minutes, depending on the model and food.
It is suitable for use in offices, cars, or on construction sites, as it requires an electrical outlet.