1pc Durable Portable Practical Convenient Reusable Beer Vibration Ultrasonic Beer FoamerDescription Description This is a bear foamer machine, which is made of materials, durable and can be used for a long time. Easy to operate. Turn on the switch and fill the activation tray with half of the water. Take out the cold beer and fill the glass with 60% cold beer. Press the ultrasonic button to produce bubbles and the blue light flashes when working. Features -Color: White. -Material: ABS, PC. -Size: About 12.30X12.30X3.20cm/ 4.83X4.83X1.26in. -Working principle: Ultrasonic -Vibration frequency: 110kHz -Operating voltage: 3.7V -Maximum working current: 2A -Charging current: 500mA -Battery Specifications: 1800mAh/3.7V with protective plate - Suitable for family gatherings, business meetings, bars and other entertainment venues. - Turn on the switch and fill the activation tray with half of the water. Take out the cold beer and fill the glass with 60% cold beer. Press the ultrasonic button to produce bubbles and the blue light flashes when working. - Through the ultrasonic vibration, the beer will produce perfect foaming, making the beer taste better and aromatic residue. - USB power interface, can be used to charge via USB computer interface, mobile phone power interface,, etc. - The small and compact bear foamer is portable and convenient to carry with you. 1 x Beer Foamer