Knowles Corporation is a global supplier of advanced micro-acoustic, audio processing, and precision device solutions, headquartered in Illinois, USA. They specialize in developing and manufacturing acoustic components, including microphones, speakers, receivers, and transducers, used in various applications such as mobile devices, consumer electronics, automotive, and medical devices. Knowles is known for its innovation in audio technology and precision engineering, catering to the evolving demands of modern electronics and communication systems worldwide.