Completely-in-canal (CIC) hearing aids are the smallest of all the hearing aid choices and distinct from other options because they are custom fitted to the inside of your ear canal to amplify sounds in people with mild to moderately-severe cases of hearing loss.
This style of hearing aid has many advantages, as well as a few disadvantages when compared to other hearing aid styles.
Pros.
CICs are small and their size and fit hold several aesthetic as well as listening advantages. Due to the lack of bulk, these devices work automatically without the need for controllers and other people may not ever notice that you’re wearing a CIC unless they peer directly into your ear canal. The custom fit of the device may make this a more comfortable choice because they are molded to the shape of your inner ear. You can wear some CIC brands around the clock for up to several months at a time, so there is no need to insert and remove them every morning and night. Hearing aid models that must be removed daily have a convenient pull-out string that lies inconspicuously outside the ear. It generally doesn’t get in the way of the telephone receiver and, because it is housed inside your ear canal, your outer ear is able to keep out wind noise. Additionally, the natural anatomy of the ear helps guide sound to the instrument, which improves the directionality of the sound.
Cons.
Because the completely-in-canal hearing aids are small, they are generally less powerful and go through batteries faster than larger ones. They are generally the more expensive option because they are custom fitted to the wearer’s ear. You will also be limited to omnidirectional sound, meaning you will experience all sound as if it’s right in front of you. CICs are typically not recommended for individuals with adequate low frequency hearing or for people with severe hearing loss.