Walton's 12 in. Pro Vacuum Sealer is the perfect solution for food packaging & marinating meat, seafood, and more. It has stainless steel housing, a special wide seal for high-quality sealing, an adjustable seal and marinate time, and its high power capabilities ensure a very quick heating time (2-3 seconds). Specifications: Takes 2 AAA bateries in handle (optional) Voltage: 110-120V~60HZ Power: 330W. Pressure: -28.3"Hg/ -958mbar (directly in pump) Big power, very short heating time (only 2-3 seconds). Special wide seal wire (5mm) enables high-quality sealing. 1-year warranty