Steam pressure, piston operated. Makes one or two cups of espresso at a time and includes 2 stainless steel filter baskets. Chrome and Gold models feature dual frothing cappuccino systems. Internal thermostats continuously monitor pressure with re-set fuses. Long life stainless steel heating elements, ETL listed, nickel-plated, solid brass boilers. 1 year warranty. Over 30 nationwide repair facilities available. Demonstration video included. Volt 110. Watts 1000 Weight 14 lbs. Height 12" Made in Italy. Gift Boxed.