A cochlear implant device has the following components:

• A microphone, which receives sound from the environment.
• A speech processor, which selects and arranges sounds received by the microphone
• A transmitter and receiver/stimulator, which receive sound signals from the speech processor and convert them into electric impulses
• An electrode array, which is a group of electrodes that collects the electrical impulses from the stimulator and delivers them to the auditory nerve