An Investigation to Validate Speech Perception Assessment for Adult Cochlear Recipients Using a Mobile Research App

The study is a feasibility, prospective, repeated-measures, multi-country, multi-centre, study of the Mobile Research App to measure and validate speech perception endpoints in adult cochlear implant recipients.

Inclusion Criteria: * Adults 18 years of age or older. * Uses a hearing device or devices (hearing aid/s and/or cochlear implant/s). * Fluent speaker in the language used to assess clinical performance as judged by the investigator. * Willing and able to provide written informed consent. Exclusion Criteria: * Unable or unwilling to comply with the requirements of the clinical investigation as determined by the Investigator. * Investigator site personnel directly affiliated with this study and/or their immediate families; immediate family is defined as a spouse, parent, child, or sibling. * Cochlear employees or employees of Contract Research Organisations or contractors engaged by Cochlear for the purposes of this investigation. * Currently participating, or participated within the last 30 days, in another interventional clinical investigation/trial involving an investigational drug or device (unless the other investigation was/is a Cochlear sponsored investigation and determined by the investigator or Sponsor to not impact this investigation). * Women who are pregnant.