PUI Audio is a premier manufacturer of high-quality audio components, headquartered in Dayton, Ohio, USA, operating as a division of Projects Unlimited, Inc., a company with a legacy in aerospace and defense electronics. With decades of experience, the company leverages shared in-house equipment and expertise from its parent's aerospace division to ensure robust production capabilities and onsite testing. The core business focuses on designing and manufacturing a wide range of audio transducers, including piezo benders, buzzers, speakers, microphones, and sirens, for diverse applications across industrial, medical, consumer, automotive, and IoT markets. Key product lines include surface-mount (SMD) transducers, panel-mount piezo buzzers, electret condenser microphones, dynamic speakers, and waterproof audio solutions, with many products offering customizable tones and frequencies. PUI Audio places strong emphasis on engineering support, offering custom design services and rapid prototyping to meet unique customer specifications. The company's market position is strengthened by its ability to serve both high-reliability sectors like aerospace/defense through Projects Unlimited and high-volume commercial markets with cost-effective audio components. Its technical advantages include in-house anechoic chambers for acoustic testing, automated production lines, and compliance with international standards such as UL, RoHS, and REACH. PUI Audio distributes globally through a network of authorized distributors and provides dedicated application engineering resources. The division's products are recognized for their durability, consistent performance, and clear sound output, making them a preferred choice for OEMs worldwide.