Sennheiser is a German private audio company based in Germany. The company specializes in designing and manufacturing high-fidelity products, including microphones, headsets, phone accessories, and aviation headsets for personal, professional and commercial applications. The company was founded in 1945, a few weeks after the end of World War II, by a laboratory called Laboratorium Wennebostel by Fritz Sennheiser (1912–2010) and seven engineers from the University of Hanover. The laboratory Wennebostel was named Weidmark in the municipal government village until it had been moved due to the war. Its first product was a voltmeter. Lab W began manufacturing microphones with DM1 in 1946 and began developing microphones with DM2 in 1947.
