In Europe alone, there are sixteen hearing aid companies who offer about 1,700 different hearing aids. Since the introduction of the first fully digital hearing technology in 1996, hearing aids have been equipped with a variety of new features, including directional microphones, automatic adjustment to different sound environments, and inference suppression. These features are designed to improve hearing in challenging communication situations, in particular when more than two persons talk, when there are background voices and noise, or when communicators engage in other activities such as cycling or swimming. Highly advanced technologies are also used in diagnostic measuring of hearing loss and in adjusting hearing aids to the individual needs of patients. Audiological research and innovation has focussed with much success on the technological features of  hearing aids. In this research we expand this direction by conceiving of hearing technologies beyond a tool for information transfer, that is, as a social tool.