Features: With its innovative technology, it creates a rich and creamy foams on top of your beer, enhancing taste, and overall drinking experience. The beer foamer features a pad on its base to firmly hold the glass or cup, preventing any spills or accidents. Suitable for beer enthusiasts, this Portable Beer Aerators Machine is compacts and easy to carry. Whether you're at a family gathering, business meeting, or enjoy a drink, simply bring out the foamer and elevates your beer instantly. As it effortlessly transforms your beer into a delight, it add a touch of excitement and creates a atmospheres that will impress your guests. Specifications: Materials: Plastic Size: about 12.30x3.1cm/4.84x1.22inch Vibrations frequency: 110kHz Working voltages: 3.7V Maximum operating current: 2A Charging current: 500mA Battery capacity: 1800mAh Charging time: 4hours Package Includes: 1pc Beer Foamer note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.