Sharper Image Electronic Spinning Wine Aerator with Spinning Chamber. Battery Powered (requires 2 AAA batteries not included). Brand new in the box. Exclusive centrifuge design spins the wine chamber for instant aeration. Enhances the flavor for smoother finish. Built in LED light illuminates wine during operation. Automatic on/off sensor activates unit as you pour. Disassembles easily for cleaning. Convenient battery operation. Great gift idea and perfect for any bar.