Invisible Hearing Aid Dealers in Chennai Are you looking for a Hearing Aid that is invisible.... Hearing Centre in Nungambakkam deals with Phonak's invisible Hearing Aid models like Nano, Virto IICs. These are discrete Hearing Aids which fits deep inside the Ear Canal that it is almost invisible. Those who have mild to moderate Hearing Loss can go for it. To know more about this Hearing Aid and features, visit our nearest centre or book an appointment with our Audiologist. M : 9840359900