"The aroma of a great beer is released as the bubbles in the head pop. In a normally poured beer, once the initial head is gone you lose most of this all-important aroma. The new Sonic Foamer is both fun and useful. It uses an invisible, ultrasonic sound wave to create the ideal sized bubbles for a remarkably long lasting and creamy head. It also allows you to use it multiple times on one beer. This means you can actively manage your beer head throughout the entire drinking process to maintain the best taste possible. It is also fun and impressive to use. It is like a magic trick. You set the beer on top, push the button and a new head seems to appear from nowhere. Your beer drinking friends will love it! "