The cochlear implant, regardless of the manufacturer, is comprised of 2 parts:
The internal device is implanted surgically and has a receiver and tiny electrodes. Three examples of internal devices are shown below. The receiver is imbedded under the skin behind the ear. The electrode array is inserted into the cochlea.
The external portion – called the speech processor – can come in a variety of sizes and wearing options.
Speech processors come in many styles including behind the ear, bodyworn, and single unit processors.
The internal and external devices work together to change sound into electrical signals that stimulate the hearing nerve.
More information about specific cochlear implant manufacturers: