Founded in 1951 in Dayton, Ohio, Projects Unlimited, Inc. is a premier manufacturer of audio electronic components. The company specializes in the design and production of buzzers, transducers, speakers, microphones, and related acoustic devices. Its product portfolio covers a wide range of audio signaling solutions for industrial, medical, military, aerospace, and consumer electronics markets. Key product lines include electromechanical buzzers, piezoelectric buzzers (e.g., A-100 series), magnetic transducers (e.g., T-200 series), dynamic speakers, and electret microphones. Projects Unlimited has built a reputation for high-quality, durable components that meet stringent military and aerospace specifications. The company offers custom engineering services, allowing clients to tailor acoustic parameters such as sound pressure level, frequency, and mounting configurations. With over 70 years of experience, Projects Unlimited has established itself as a trusted supplier in the global electronic components industry. It serves a diverse customer base, including major OEMs, defense contractors, and medical device manufacturers. While not a semiconductor company, Projects Unlimited holds a niche leadership position in the audio indicator and transducer market. The company continues to innovate with new materials and designs to meet evolving requirements for miniaturization and ruggedness.