... batteries. Capacity: 3L Product specification. 1, Pour the beer, then you turn on "bubble" the function, it ... can bring you the taste of brand beer from common beers. 3, Drinking one cup ... good to your health. 4, Bubble beer totally releases the CO2 in beer, No distensible abdomen after drinking. 5 ... be produce forth immediately, you may enjoy the beer right away. 6, LED lights change colorful lights ...