MAESTRO 9 is able to perform different Objective Measurements with Cochlear Implants like Auditory Nerve Response Telemetry (ART) to measure electrically evoked compound action potentials (ECAPs), electrically evoked stapedius reflex thresholds (ESRT) or electrically evoked auditory brainstem responses (EABR). This webinar is presenting the stimulation sequences used by those measurements acoustically and briefly describes why and when those recordings are recommended.