Late during the evening of 17 May 2010, only a few days after his 98th birthday, Prof. Dr.-Ing. Fritz Sennheiser, audio pioneer and founder of today’s Sennheiser electronic GmbH & Co. KG, passed away.
Through his company Prof. Dr. Fritz Sennheiser had a crucial influence on the development of sound transmission technologies and was instrumental in forging many ground-breaking developments in electroacoustics and transmission technologies. Under his guidance the first shotgun microphones and open headphones were created and he oversaw important developments in wireless radio and infra-red transmission.
Late during the evening of 17 May 2010, only a few days after his 98th birthday, Prof. Dr.-Ing. Fritz Sennheiser, audio pioneer and founder of today’s Sennheiser electronic GmbH & Co. KG, passed away. 
Through his company Prof. Dr. Fritz Sennheiser had a crucial influence on the development of sound transmission technologies and was instrumental in forging many ground-breaking developments in electroacoustics and transmission technologies. Under his guidance the first shotgun microphones and open headphones were created and he oversaw important developments in wireless radio and infra-red transmission.