1.Fast and : with this electric corkscrew, the user can open a bottle of wine within 68 seconds. Its corkscrew is housed in a hollow and transparent tubular body, thus can protect the user from injury by the wine opener and also protect the corkscrew from damage caused by an accident. The transparent body allows the user to observe the operating condition of the bottle openers. 2.LOW POWER CONSUMPTION LOW NOISE Equipped with an advanced electric motor, this bottle opener can operate with a very low noise level (75dB) and work extremely low power consumption. 4 AA alkaline batteries (package not included) in full capacity can be enough to open 80100 bottles of wine (depends on the power of the batteries and the usage situation). 3.Compact and easy portability: this wine bottle opener has a net weight of 280 g (or 375 g with 4 AA batteries), with a diameter of 45 mm and a length of 252 mm. Such a weight and size is very convenient for the user to put this wine opener in a handbag, suitcase or backpack or even carry it by hand. 4.Convenience: when the batteries run out of power, the user can easily replace them with ones, then the corkscrew can immediately to work without waiting to be charged. Therefore, it is applicable for home use, catering, banquets, restaurant, bar, etc. This automatic bottle opener has a very high efficiency to open wines; therefore it is an ideal and easy to use wine kit for professional sommeliers and waiters.