Challenge Electronics was founded in 1988, specializing in industrial and commercial-grade audio components for manufacturing. We carry thousands of buzzers, alarms, speakers, microphones, transducers, resonators and battery accessories that meet applicable industry certifications and quality standards, including RoHS, and IP-68. Challenge Electronics is an ISO-9001 certified organization. Challenge Electronics offers customizations and value-added engineering services to resolve demanding manufacturing and procurement challenges. With engineering talent and expertise, combined with off-shore manufacturing, Challenge Electronics maintains a lean, scalable infrastructure.