The Pro-3500 has a powerful 935 watt motor. Detachable power cord. Bag roll cutter to quickly and easily create vacuum bags from rolls. Extra heat sealing bar for sealing bags up to 15" wide. Double piston vacuum-pump delivers up to 28" HG vacuum strength. Automatic mode with simple one-touch operation and manual seal mode allows control of the amount of vacuum pressure for sealing soft foods or delicate objects. LED lights monitor the stages of the sealing process. Features convenient bag roll holder - collapses for easy storage or when not in use.