Fizz retaining device for beverage containers

A carbonation retaining closure assembly device for a beverage container, the device assembly comprising:

• a cap member manufactured to operationally engage with the manufactured cap engaged upon the mouth of the beverage container;
• the cap member having a top portion that is operationally coupled to a connector member;
• a cutting mechanism mounted upon the connector member wherein a slit is punctured within an outer wall of the manufactured cap as the connector member is engaged with the top portion of the cap member;
• a dispensing mechanism operationally connected to the connector member for dispensing the beverage through the dispensing mechanism;
• a handle with a CO2 container integrally incorporated therein is operationally coupled to the dispensing mechanism;
• and a passageway disposed between the CO2 container and through the dispensing mechanism extending through the connector member and into the cap member into the mouth of the beverage container such that when the handle is depressed CO2 is dispersed through the passageway into the beverage container thereby maintaining a predetermined carbonation level within the beverage container.