No need to add water to heat: just plug in the power supply to start heating food, it is very quiet when hot and will not disturb you. Food Insulated Lunch Box has a large-capacity stainless steel container, our food warmer and meal box is perfect for you. We provide separate lunch boxes so that you can put different types of food separately. Keep the food original and avoid cross-seasoningOur self-heating lunch box comes with two power cords, a 12V vehicle power cord for trucks and vehicles, and a 110V household power cord for offices, homes. No matter where you are, as long as there is an outlet, there are hot meals;Easy to clean and carry: The hot lunch box for work includes a detachable stainless steel tray that you can easily clean. The round spout prevents moisture, the sealed outer container keeps food warm and fresh, and the integrated cutlery tray and anti-scalding handle make the box easy to carry.Integrated sealing lid design: These heating lunch boxes for office workers have a sealing lid to keep food fresh, prevent liquid or food from spilling, and are easy to store in the refrigerator as a food container. The electric lunch box is perfect for company employees, heating lunch boxes for construction workers, truckers and others who want to bring their own lunch.50W high power for faster heating: 10.8 x 7.9 x 3.5 inches. The heating box adopts constant temperature heating, with dual functions of fast heating and food insulation, and low-power heat cycle. It usually takes 15 to 25 minutes to heat food in summer. It usually takes 25 to 35 minutes in winter or when taking food out of the refrigerator