Antoine Bertin is a sound artist curious about our relationship to the environment. Together with material designer Hélène Combal-Weiss, and technology creative Simon Cacheux they form SounDoesnTravel, a sound driven creative studio designing innovative listening experiences. They have made these acoustic hearing accessories. Se others here:
http://www.everydaylistening.com/articles/tag/hearingaids
TUNING THE EAR 