Cochlear implants are complex medical devices that employment differently than hearing aids. instead of amplifying sound—which helps an individual with residual hearing ability—a cochlear implant provides the sense of sound by stimulating the acoustic nerve directly. Cochlear implants don't cure deafness or restore hearing, but they are doing provide a chance for the severely hard of hearing or inattentive perceive the feeling of sound by bypassing the damaged internal ear . Unlike hearing aids, they require surgical implantation. A cochlear implant may be a small device that electrically stimulates the cochlear nerve (nerve for hearing). The implant has external and internal parts. The external part sits behind the ear. It picks up sounds with a microphone. It then processes the sound and transmits it to the interior a part of the implant. the interior part is placed under the skin behind the ear during an outpatient surgery. a skinny wire and little electrodes cause the cochlea, which is a component of the internal ear . The wire sends signals to the cochlear nerve, which sends sound information to the brain to supply a hearing sensation. Although normal hearing isn't restored, with appropriate therapy and practice, the improved hearing experience can mean an increased awareness of sounds within the environment, also as better communication through easier lip reading and listening. A cochlear implant may help someone with deafness restore or improve the power to listen to and understand speech. A cochlear implant is different than a hearing aid. A hearing aid makes sounds louder but might not significantly improve speech understanding. When an individual struggles to know speech, even with appropriately fitted hearing aids, a cochlear implant should be considered. When the device is tuned appropriately and therefore the recipient is committed to rehabilitation therapy, the -cochlear implant can significantly increase hearing in adults. Cochlear implants in infants and toddlers may help them listen and learn to talk .