Review on 🍷 Efficient Electric Automatic Wine Stopper Vacuum - Ultimate Wine Saver for 7-Day Freshness - Reusable & Convenient - Requires 2 AAA Batteries (Not Included) by Suhas Carney

Such a simple and practical wine cork. You have to put some batteries in, but then it looks like it will last quite a long time on batteries. Once you're ready to remove the wine, simply place it on top of the wine and literally hear the air escape from it. . To reopen the wine, just pull straight up and you'll hear a nice little "pop" sound you hear when you uncork a bottle of wine for the first time. The simplicity is great and no pumps or anything required, just a couple of batteries and it seals your wine until you're ready to drink it next time.