product 1. FREE YOUR HANDS: Compared to the traditional wine vacuum pump, you need to manually press repeatedly to extract the vacuum inside the red wine bottle, while our electric wine stopper only needs to be pressed into place, the blue evacuation indicator lights up, you can automatically evacuate the whole process, just wait quietly for the evacuation indicator light to go out to easily keep your red wine fresh as ever 2. The wine sealer vacuum will constantly and automatically detect the air pressure inside the bottle. When the bottle load pressure leakage exceeds, the electric wine stopper will start again to exclude the air inside the bottle and keep the vacuum inside the bottle, so as to achieve a good preservation effect 3. ANTI-POUR DETECION:When the Vacuum Pump is in working condition, when the bottle is tilted to 45 , it will trigger the anti-pour-out function, the red wine vacuum pump will automatically stop pumping vacuum and light up a red light to remind you. This prevents the bottle from tilting and continuing to pump air and causing the wine to flow back inside the soft red wine stopper causing a malfunction 4.Wine GIFTS Wine vacuum stopper for all red and white wine, is the best gift for red wine lovers, so that your red wine is no longer wasted, keep fresh 7 days is so simple Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.