The AABR® Technology you can Trust in a Handheld Screener. The ALGO 3i screener incorporates proprietary Natus AABR technology. It is supported by numerous published studies within respected peer-reviewed journals It offers a complete screen of the hearing pathway in one simple step It consists of fast and Simple Operation. Unlike other hand-held screeners, the ALGO 3i device screens both ears simultaneously. The unique Speed Screen™ function allows you to conduct a test while entering patient information. The Smart Help system offers helpful tips targeted to your needs. It comes with colored graphical display to guide you easily through the screening process. It is fully automated, objective pass/refer results that require no interpretation. It is completely standardized, pre-set screening parameters - no adjustments needed.