The BC-MS400 can be operated precisely manually or fully automatically. In nozzle mode, you can adjust the pumping time according as your own needs, and you can also adjust the sealing time according to the thickness of the bag. The soft and fragile food such as bread and potato chips, it can also be air-filled. For oily and wet food, it can be vacuum packed. Keep the fresh longer. It can vacuum sealing embossed vacuum sealer bags and smooth flat bags.