Knowles Corp. supplies advanced micro-acoustic, audio processing and precision device solutions. The company is headquartered in Itasca, Illinois and currently employs 5,500 full-time employees. The company went IPO on 2014-02-14. The firm is engaged in manufacturing high-performance capacitors, radio frequency (RF) and microwave filters, advanced medtech microphones, balanced armature speakers, and miniaturization products. The Company’s segments include Precision Devices (PD) and MedTech & Specialty Audio (MSA). Its PD segment is specialized in the design and delivery of high-performance capacitor products and RF solutions primarily serving the defense, medtech, electrification, and industrial markets. Its MSA segment designs and manufactures balanced armature speakers and microphones used in applications that serve the hearing health and premium audio markets. The firm sells its products directly to original equipment manufacturers (OEMs) and to their contract manufacturers and suppliers and through distributors worldwide.