Knowles Corporation is a provider of micro-acoustic, audio processing, and precision device solutions, serving the mobile consumer electronics, communications, medtech, defense, electric vehicle, and industrial markets. The Company operates through two segments: Audio and Precision Devices (PD). Its Audio segment designs and manufactures audio products, including microphones, balanced armature speakers, and audio processors used in applications that serve the mobile, ear, and Internet of things (IoT) markets. Its PD segment specializes in the design and delivery of capacitor products and mmWave radio frequency (RF) solutions for technically demanding applications. The Company sells its products directly to original equipment manufacturers (OEMs) and to their contract manufacturers and suppliers, and through distributors worldwide. It has sales, support and engineering facilities in North America, Europe and Asia, and manufacturing facilities in Asia.