Through the stepless speed control button, the speed can be adjusted according to the bottle capacity. Two power options are available: install 4 AA batteries (not included) or use the included USB cable. The wine dispenser is designed to operate continuously for ten minutes and will automatically shut off, requiring a restart to continue use. When the battery is low, the indicator light turns red. Lightweight and portable, this pocket-style wine dispenser is compact, easy to carry, and ideal for various occasions. Compatible with standard wine bottles for dispensing red or white wine. A perfect wine accessory for home use, parties, picnics, or celebrations such as birthdays, weddings, anniversaries, graduations, retirements, and housewarmings. Color: Black Material: ABS Package Contents: 1 x Wine Decanter 1 x USB Cable Note: The package includes only the items listed above. Other products are not included. Lighting and monitor settings may cause slight color variations between the product image and the actual item. Measurement may vary by +/- 1-3 cm due to manual measurement.