This Electric Wine Preserver can seal most traditional wine bottles and vacuum opened wines. It removes air from the wine bottle with a vacuum seal to preserve your wine flavor and wine freshness. It includes an AC/DC adaptor, recharging base and three wine stoppers with date indicators. When wine preserver is fully charged, the Red LED light will change to Green LED so as to show the unit is fully charged and ready for use. This is a great gift item for any wine beginner or connoisseur!