- How to use: A device for pouring beer - Notes: Removable unit - Design: Compact and stylish With a wood-tone handle designed for easy pouring, it also looks fashionable. Features • Creates fine, creamy foam with ultrasonic vibrations of approximately 40,000 times per second • One-touch switching between "liquid" and "foam" • Compatible with 250ml / 330ml / 350ml / 500ml cans • Can be used for approximately 180 cans of 350ml (when used for 10 seconds per can) with 2 AA batteries • Ultrasonic unit is removable & the spout can be washed, making it hygienic • Perfect for evening drinks, parties, outdoor activities, and gifts Shipping is planned via Yu-Packet Plus box, so the outer box will be removed or folded and bubble-wrapped.