Introduction: Knowles is a market leader and global supplier of advanced micro acoustic devices, specialty components, and human-machine interface solutions for mobile communications, consumer electronics, medical technology, military/space, and other industrial end markets. We are experienced, rigorously tested, and provide precise and reliable products, including hearing aid components, MEMS (Micro Electro Mechanical Systems) microphones, speakers, receivers, sensors, capacitors, oscillators, and more.