Knowles Corporation is a global provider of high performance capacitors and radio frequency (RF) products, balanced armature speakers, advanced micro-acoustic microphones, and audio solutions. The Company's segments include Precision Devices (PD), and Medtech & Specialty Audio (MSA). The PD segment specializes in the design and delivery of high-performance capacitor products and RF solutions primarily serving the defense, medtech, electric vehicle, and industrial markets. The MSA segment designs and manufactures balanced armature speakers and microphones used in applications that serve the hearing health and premium audio markets. The Company sells its products directly to original equipment manufacturers (OEMs) and to their contract manufacturers and suppliers and through distributors worldwide.