Product information: Power type: plug-in Color: European standard, American Standard, British Standard Rated Power: 90Hz Shell material: ABS Function: vacuum pumping, others Rated Voltage: 110-220V Material: ABS Rated frequency: 110 Capacity: 500-1000ml Product specifications: Vacuum sealing machine, A: Vacuum Sealing Machine [10 freshness protection package], B: Vacuum Sealing Machine [20 freshness protection package], C:50 freshness protection package [excluding vacuum machine]]