Sennheiser Group with its headquarter in Wedemark near Hannover, Germany,
constitutes one of the world leading producer of microphones, wireless
systems and headphones. Being founded in 1945, today this family business
unites over 2300 employees. Sennheiser possesses its own plants in Germany,
Ireland and the USA. This year Sennheiser is pleased to present HD 820
premium headphones and wireless headphones Momentum True Wireless.