★SPECIFICATION ★ A and B are the same, except that 100 sealed bags are added to the B package. Voltage: AC220V/50Hz, 110V/60Hz Vacuum pump motor power: 120W Vacuum pump displacement: 1.8m^3/H Heat sealing power: 260W Heat seal width: 8mm Heat seal length: 260mm Material: Stainless steel Vacuum chamber size: 330*270*50mm size: 405*320*340mm Packing size: 500*400*400mm Gross weight: 22KG Contains: instruction manual, heating wire, high temperature cloth Note: ★Before you buy it, please confirm the measurements shown in the description, please allow 1-2 cm error due to manual measurement. If you still have any questions, welcome to contact us, our customer support group will respond to you within 24 hours.