自动的酒保护YQ-WP1

Automatic Wine Preserver Keep wine fresher, longer, with the Automatic Wine Preserver. It pumps air out and seals flavor in, so you can enjoy a bottle over several days. Just place on bottle automatic operation instantly seals your bottle of wine and removes up to 40% of air. Simply leave the wine preserver in place. The preserver keeps working it automatically senses if any air is seeping back into the bottle and activates as needed. Auto shut off. Uses 2 AAA batteries (not included). Savor your wine on your own time without any hassle.