Pro Audio Limited, 111 N South Dr, Tower Lakes, IL 60010, US

Founded in 1961, OTTO Engineering designs and manufactures a range of products for demanding applications. It operates through several divisions, including control and communication. The company manufactures switches, control grips and two-way radio accessories. It offers in-house injection molding, stamping, computer numerical control machining, and cable assembly and over molding services. OTTO Engineering has mechanical, electrical and radio-frequency design engineering capabilities, as well as maintains product testing laboratories. Its switches and control grips serves the heavy equipment, aerospace, marine, medical and telecommunications industries. The company also provides racing communication equipment, surveillance kits, wireless accessories, speaker microphones, and lightweight and heavy-duty dispatch headsets through its communications division. Additionally, OTTO Engineering sells products worldwide through a network of representatives, distributors and dealers.