<br><b>The product does not include batteries, you need to use your own batteries (2 pieces of AAA batteries). </b> <br><br> <b>How to Use:</b> <br>STEP 1 : Press the wine saver into the bottle mouth of wine firmly. The wine stopper will start to work automatically. <br>STEP 2 : The indicator lights of the working process and battery power both light in blue in the process of air pumping. When the stopper completes the work, the indicator lights will turn off automatically after 5 seconds. <br>STEP 3 : Store the sealed wine bottle in the refrigerator or wine cabinet to achieve better preservation effect. Also, it is recommended to drink within 7 days. <br>STEP 4 : The wine saver will intelligently detect the air pressure inside the bottle. When the negative pressure is higher than -0.01Mpa, the electric wine stopper will restart air pumping. <br><br> <b>Anti-fall Function</b> </b>If the bottle is tilted to 45 degrees while the wine saver is working, the wine saver will stop working for the anti-fall function is triggered, and the indicator light of the working process flashes in red. <br><br> <b>Attentions: </b> <br>1.Please notice the place of anode and cathode when install the batteries. <br>2.If the battery is running low the indicator light of battery power will flash in red 5 times and the wine saver will stop working. <br>3.Please do not place the wine bottle horizontally, otherwise the wine will damage the stopper. <br>4.Please do not put in water or other liquids to avoid damage to products or safety emergency.