Knowles Corporation designs, manufactures, and sells micro-acoustic and audio processing solutions, as well as precision device products for various markets, including mobile consumer electronics, communications, medical technology, defense, automotive, and industrial sectors. The company operates through two primary segments: Audio and Precision Devices. The Audio segment focuses on creating microphones, balanced armature speakers, and audio processors, catering to applications in mobile devices and the Internet of Things. Meanwhile, the Precision Devices segment delivers capacitors and radio frequency solutions used in power supplies, medical implants, and telecommunications infrastructure. Knowles Corporation also provides electronic components for telecommunication and defense markets. The company, founded in 1946 and headquartered in Itasca, Illinois, sells its products directly to original equipment manufacturers and their suppliers, as well as through distributors. With over 7,000 employees worldwide, Knowles emphasizes innovation and research, contributing to significant advancements in audio technology and applications, including contributions to historic events such as the Apollo 11 mission.