"The company was founded in 1945, just a few weeks after World War II, by Fritz Sennheiser and seven fellow engineers of the University of Hannover in a laboratory called Laboratorium Wennebostel. The laboratory was named after the village of Wennebostel, where it had been moved due to the war. Its first product was a voltmeter. Labor W began building microphones in 1946. By 1955, the company had 250 employees. Labor W was renamed Sennheiser electronic in 1958. Sennheiser was transformed into a limited partnership (KG) in 1973. In 1980, the company entered the aviation market, supplying Lufthansa with headsets.[3] The company began producing modern wireless microphones in 1982. Also in 1982, founder Fritz Sennheiser handed the management of the company over to his son, Jörg Sennheiser."