Rated voltage: DC3V Rated power: Less than 1WBattery model: AAA (customer equipped with two AAA batteries)Functional operation: press the button for 3 seconds to turn on the red light, the green light to the wine, stand by after laying it down, and automatically shut down when there is no operation after 10 secondsThere are four accessories: main unit, wine decanter, beer foamer, and wine bottle rubber stopper. It can only be used with batteries, there is no built-in lithium battery because of the of exporting.Using ultrasonic waves to cause high-frequency vibration of red wine can quickly sober up the wine without shaking the red wine. Then the high frequency vibration beer will make the foam of the beer very delicate like milk, and the beer will very smoothly to reduce the bitterness of the beer.color:BlackMaterial:ABSsize:9.4cm x 6.4cm x 7.5cmPackage Contents:1 x 1 x and English manualOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.