1: double vacuum pump design, controllable single pump vacuum (silent pumping) or double pump vacuum (strong pumping) 2:7mm wide body heating wire, wider and tighter sealing than conventional 3mm heating wire bag mouth. 3: DC14V heating wire power supply, avoid like AC heating wire, in use, when the liquid invasion caused by leakage risk, safer use. 3: maximum 31.5cm sealing size, wider sealing bag mouth. 4: detachable washing base design, avoid the use of liquid into the machine, circuit board damage, and easy to clean after use. 5: with graduated slide cutting knife, easy to cut slack bag length according to demand. 6: Luminous font Touch panel design. 7: metal texture drawing panel. 8: Built-in external pumping function design. 9: low temperature, standard, high temperature, 3 kinds of sealing temperature adjustable, avoid sealing high or low temperature.