・ With the fine creamy foam produced by ultrasonic waves 40,000 times per second, you can enjoy the finest taste of drinking canned beer at home. ・ The foam of beer is a "lid" that protects the taste. Foam has different properties depending on its size, and while large foam pops quickly, fine foam lasts a long time and gives a creamy feel. ・Easy to install with one touch! It can be used for various purposes such as daily evening drinks, parties, outdoors, gifts for events such as in-house bingo, and gifts.