Naída is the most trusted power hearing aid.??? Thanks to expert engineering and design excellence, Naída Marvel can reliably deliver the power needed to manage a severe to profound hearing loss. Since the launch of our first power hearing aid in 1978, we have continuously created hearing solutions that are designed to improve people’s lives. Powered by proven Marvel technology, the new Naída M-SP embodies a premium power hearing aid with dedicated key performance technologies that reliably deliver the power needed to manage your clients’ hearing loss.People with severe to profound hearing loss depend on their hearing aids and require a solution that truly delivers. The robust housing enables your clients to continue with their everyday activities knowing that their hearing aids will function reliably and withstand even the toughest listening situations