It can be recognized by its great balance, exclusiveness and formal excellence.
Excellent equilibrated logo blunt with thin line.
O radio is surely a promising candidate between classic logos, due to its accuracy in terms of weight and shapes.
The key to success of O radio is the stength of its color range, that breaks the space turning it into main protagonist.
O radio is a perfect sample of how a logo turns up to be a clear distinctive of its brand.