The GSI Corti™ is a portable, battery-operated diagnostic and screening instrument that measures Otoacoustic Emissions (OAE) in infants, children, and adults. Meeting all recommended hearing screening protocols, the Corti offers the ability to rapidly screen newborns and perform diagnostic OAE testing. The Corti is accurate, fast, easy-to-use and reliable. https://www.soniceq.com/diagnostic-equipment/gsi-corti