It's called Coravin III Wine Fashion Packe allows users to take the desired amount from a closed bottle through a hollow needle that pierces the capsule and cork.

The remaining wine is pressurised with argon gas, commonly used to retard oxidation. The cork seals itself naturally, and the wine in the bottle continues to develop as it normally would, without exposure.

In short, Coravin has the potential to cause a real revolution in wine consumption.