Sennheiser | 200,249 followers on LinkedIn. The world's finest headphones, microphones, wireless systems and broadcast headsets. | Sennheiser is shaping the Future of Audio - a vision built on a 75-year history of innovation and a continued drive for excellence that is woven into our company’s DNA and culture. Around the world, our employees share this passion in the pursuit of the perfect sound, creating products that exceed expectations and set new benchmarks in audio. Numerous iconic products like the invention of the first open-type headphone, the HD 414 in 1968, the MD 441 microphone in 1971 and the creation of the legendary Orpheus in 1991 bear witness to Sennheiser’s unique innovative drive.