Pump driven and 15 bars. Automatically self primes;Water level indicator: YesInput power is 1100 watt. Note-if pump is excessively noisy it may be caused due to empty water tank can be corrected by refilling tankUse pods or ground coffee with the convenient patented filter holder. Craft cappuccinos or lattes with the patented easy to use frothier44 oz. and 1.3 litter removable water tank.Never install the appliance in environments where the temperature may reach 0°C (32°F) or lower (the appliance may be damaged if the water freezeUtilize De'Longhi's call center for customized help setting up and maintaining your machine at 1-800-322-3848NOTE: Refer the Manual before use which is highly recommended.