The Kalorik Electric Corkscrew helps make uncorking wine bottles fun and easy. It serves as a wine opener that is as entertaining to watch as it is easy to use. This Electric Wine Opener includes a foil cutter and instructions. Opens a Bottle in Just 7 Seconds See the blue light shine through the action window as the cork is smoothly extracted from your bottle and released with the simple press of a button. Start by using the included foil cutter to remove the foil from a wine bottle. Then position the corkscrew above the bottle and press the button while you firmly press down on the cork. Within 7 seconds or less, the spiral corkscrew will remove the cork and -voila- you’re ready to pour. Charging Base Doubles as a Nightlight The blue light also shines brightly on its recharging stand, doubling its duty as a stylish nightlight. It charges on the base through the night, ready for use during the day. On a full charge, this corkscrew can open up to 30 bottles. Does this work on both natural and synthetic corks? Yes, this electric corkscrew easily opens wine bottles of all shapes and sizes and with both natural and synthetic corks without shredding them. What kind of batteries does electric corkscrew use? None! This electric wine opener charges on an included charging base so you never need to replace batteries.