Oster FPSTBW8100 Electronic Wine Vacuum Cork with LCD Display, Black Handheld electronic wine vacuum cork removes air from opened bottles of wine Blue LCD display shows wine's current temperature in degrees F or C Built-in thermometer; pressure-release button for easy removal Low-battery indicator; requires 2 AAA batteries (included) Measures 2-2/7 by 2-2/7 by 4-1/2 inches; 1-year limited warranty