The Volkswagen Dynaudio speakers do not have a trademark because they are universal speakers. Under normal circumstances, there will be no trademark on the back of Volkswagen Dynaudio speakers because they are universal speakers, usually used in cars and home theater systems, rather than specifically designed for a certain brand. Therefore, Volkswagen Dynaudio speakers do not have a trademark because they are universal speakers. Dynaudio speakers are produced by a world-renowned speaker manufacturing brand and are the top audiophile brands.