The ONE series earplugs are especially designed for the use in the context of sports, athletics and outdoor activities. Conventional earplugs are highly influenced by the contact of the cables to the clothes and the musicplayer - by this they often become loose because of the repetitive impetuses to the housings.
The earplugs are laid out to circumvent this insufficiency by avoiding momentum and external forces. To integrate this idea into the design it was necessary to uncouple the ear adaptors (which are available in different sizes - from small to large) from the housing of the technical components. The first tests with prototypes have shown the technical advisability.