Knowles Corporation

Knowles Corporation makes tiny electronic parts that go into larger devices. Their main products are capacitors (which store electrical energy), filters for radio signals, speakers, and microphones. They sell these components to manufacturers who build defense equipment, medical devices, electric vehicles, and industrial machinery. The company has two main business units: one focuses on capacitors and radio signal filters for defense and industrial uses, and the other makes speakers and microphones for hearing aids and medical devices.