he concept of the Vol Portable Speakers is too similar to the Diwali lanterns available in India! A great approach of using the natural up-down sliding motion to increase and decrease the volume of the speaker. So much better than just hitting some buttons or turning a dial. We really like this project and think that JBL, Altec or B&W must to pay attention on thhis guy. He can be cotacted at the link below.
