The article presents information about the use of cochlear implant. Cochlear implants ameliorate the effects of sensorineural dysfunction by bypassing damaged cochlear hair cells. The external components of the cochlear implant consist of a microphone, speech processor, and transmitting coil. The implanted internal components are the receiver-stimulator and electrode array. A small microphone cradling the ear gathers sound, which is then digitized by the speech processor and sent to the transmitting coil.