Automatic air extraction: Place the wine cork into the neck of the bottle tightly, press down with the pump on the cork, the device will start extracting the air automatically until you hear the beep sound after a few seconds, which means the work vacuum is over. There is no need to push or pull the pump like a manual bottle opener, which saves a lot of energy. Keeps wine fresh: The remaining wine in the wine bottle will stay fresh as opened for approximately 7 days. When you want to enjoy your drink, just pull the seal on the top of the cap to open it. Easy to use without force. Rechargeable vacuum pump: The wine pump is designed with Type-C charging port, it only takes 2.5 hours for full charging. Each refill allows up to 50 suctions. No more searching for dry batteries when the battery runs out. LED indicator light. When the electric vacuum pump is working, the LED light will be on, and when the work is finished, the light will automatically turn off after 10 seconds. A perfect gift: The kit includes 1 rechargeable vacuum pump, 4 food-grade silicone plugs with date marking ring and a type-C charging cable, which is suitable for your own use or as a gift for wine lovers, such as wine lovers. party occasions, birthday, travel, etc.