For anyone not familiar with Cochlerar Implants, here are a couple of photos. The first shows the components of the system.The grey parts are what is seen on the outside. They clip over the ear similar to a hearing aid. They contain the microphone, sound processor, the battery, and the round part on the lead contains a magnet and a loop which transmits the processed sound signal.
The shiny thing in the centre of the loop on the right is a magnet. This component is implanted under the skin of the scalp. The magnets in the two components hold them together when worn. The sound signals are transmitted to the coil in the implanted component. The lead on this component is threaded into the cochlear in the ear, the 22 electrodes on the end of it stimulating the nerves and sending the sound signals to the brain.
The second photo shows how the external component appears when worn.