Ovo is a passive speaker that requires zero power to operate. Appealing to both the environmentally conscious as well as the stylishly inclined, it essentially amplifies sound purely through its form. The smartphone device is placed on one end as by the time its sound travels through the passive speaker's body, it comes out loud and clear.
What sets this particular passive speaker apart from similar designs is the fact that it is made out of Carrara marble. A luxe alternative, it was made by stone craftsman company Monitillo Marmi. The passive speaker was carved out from a single block of the marble material with the aid of a computer controlled cutting machine. This is impressive due to some of its subtle details.