Hearing aids can improve hearing in both noisy and quiet situations, but a whopping 80% of people who would benefit from a hearing aid aren't using one. Hearing aids amplify sound vibrations and play them through a speaker directly into the ear of the hearing impared person.
Hearing 
According to the National Institute on Deafness and Other Communication Disorders (NIDCD), if you have hearing loss, talk to your doctor about a referral to an audiologist or an otolaryngologist. The audiologist will be able to measure your hearing loss, and the otolaryngologist will check out the cause for the hearing loss.
There are three basic types of hearing aids: behind-the-ear (BTE), in-the-ear (ITE), and in-the-canal (ITC). If it turns out a hearing aid is right for you, the type of hearing aid you get will be determined by the severity of your hearing loss, cost of the device, and your age.
If you have mild hearing loss, an ITC hearing aid might be right for you. This type of aid fits into the ear canal entirely, and is nearly hidden. ITCs are not ideal for children or those with severe hearing loss because they are difficult to adjust and remove, and their power and volume controls are more limited.
