Milk frother makes hot and cold milk froth for cappuccinos;heats hot milk for lattes. Maximum capacity: 125 ml (for milk froth preparation);250 ml (for hot milk preparation)^Maximum level indicator for milk frother and maximum level indicator for milk warmer;and minimum milk level indicator^Stainless-steel exterior with vacuum insulation; Detachable base; FREE cleaning brush.^Product Built to North American Electrical Standards;120V. ETL. 2-YEAR Warranty^To make hot drinks;please press the ON/OFF button once and release immediately;both heater and frother will turn on. Press and hold the ON/OFF button for 3 seconds;the frother will turn on;but heater won't turn one. This makes cold drinks.