Belively Stainless Steel Electric Wine Bottle Opener Rechargeable Temperature with Infrared Wine Thermometer & Digital LCD (Electric) Electric wine opener opens up to 80 bottles of wine on a single charge, fully charges in 8-10 hours Its built-in thermometer displays both wine bottle and room temperature readings on its digital LCD screen A digital battery meter on its LCD screen so that you are never out of charge Pulls out all types of corks, rechargeable with AC wall adapter (included) Installation of the battery: two positive pole and two negative pole of the batteries must be opposite, or the power supply couldn't be connected