Hearing Aids

What are hearing aids? A small amplifying devices that are used to help partially impaired individuals. Nowadays it can be modified to match the hearing loss, physical features, and preference of the user.

The main function by improving the hearing and speech comprehension of individuals who lost their hearing by damaged sensory cells in the inner ear. This damage is as a result of a disease, aging or injuries due to a certain noise level. An audiologist or otolaryngologist is responsible for determining the level of hearing loss and prescribing the hearing aids.

How do they work?

A modern hearing aid consists of four basic parts. An amplifier, speaker, processor, and microphone. When sounds are within the environment, the built-in microphones pick up sounds that are audible. The sounds that are picked up are then analyzed by the processing chip and transferred to the amplifier.

Hearing Aid structure

The amplified sounds are then transmitted to the loudspeaker, where it will magnify the processed sounds within the inner ear. Impulses are then created by the hearing aid and the brain picks up these impulses. The brain will then decode the impulses and allow the user to interpret the sounds within the environment.

Types of Hearing Aids

Invisible-in-the-Canal (IIC)
Bone-anchored (BAHA)

Invisible-in-the-Canal (IIC)

These are small circular hearing aids that are fitted further within the ear canal. It is completely invisible and you will not notice it unless the user shows it to you.


These are also referred to as receiver in the ears or RITA devices. This aid fits individuals who have moderate to severe hearing loss and need amplification across different frequencies. They are easier to clean and manipulate compared to other aids. These aids come with a case, an earmold or dome. The case is responsible for the controls, battery, microphone, and speaker. The case can be located behind the pinna and the connection falls over and down the front which then enters the ear. Adolescents are normally owners of these hearing aids as they are durable which can last for their entire childhood.


These are developed hearing aids which fit comfortably into the individual's outer ear. They are created from materials that are both firm and soft. These aids cut the level of feedback and can be customized with different colors and decorations.


These are hearing aids that limit the use of battery power due to the non-replaceable built-in battery.

Bone-anchored (BAHA)

These are prosthetic device which function by bone conduction. Surgically implanted for patients who cannot use normal hearing aids due to specific reasons. The cranium is used as a passageway for sound to be transported to the inner ear rather than the auditory canal. The cranium is used to transport and conduct sound waves to the cochlea instead of the auditory canal.

Here is a chart with the Best Hearing Aids.

Pros and Cons of Hearing Aids


  • Hearing aids will not reinstitute an individual's hearing, however, it improves it to a certain level;
  • Help to decrease atrophy (deterioration of cells) within the human brain;
  • Relationship and communication improves between families and friends;
  • Available in different styles, configuration and color;


  • They are very expensive (over $2000 a pair);
  • It can be difficult to maintain;
  • May cause some level of discomfort;

Robert Winter says:

I have worn hearing aids for forty plus years and been a fan of CR for almost as long. No longer a fan. Over the years they have recycled and rewritten a very basic 'introduction to hearing aids' article every few years. It's fantastic for a consumer who is just starting to look at hearing aids, and useless for anyone with experience and a moderately technical mind. They don't even do the basic legwork of putting together a comparison chart of even the major brands, and describe how different manufacturers name features like 'feedback control' differently.

Gary Arnold says:

I use in the canal aids, had Phonak for over 10 years, one quit and the other got run over (thats another story). Tried Phonak again but cell phone was not acceptable. Just got fitted up with ReSound in the canal, this is the only one that works for me as I use the cell phone a lot and it has bluetooth that streams direct to the aids, only thing that works for me as I'm pretty hard of hearing. I'm still having some fit issues but we are working thru it. Got a good trial period of 90 days so should be able to get 'em right.

Read more Hearing Aids Reviews.

Price Overview

When buying hearing aids, it's important to be sure that the money and time was worth it. Here we collect approx prices in the market depending on the specialty.

Basic Mid-Range Premium
Price $800 - $1700 $1700 - $2500 $2500 - $3500
Specialty Speech improvement at home Wireless connectivity 360° hearing for outstanding spatial orientation

You can read full report about Hearing Aids Prices on our separate overview page.

Why WOW Marvel Hearing Aid?

When the first contact lenses for overnight wear were introduced in 1981, the positive response from those who were searching for comfort, convenience and cost-savings in corrective vision options was overwhelming!

WOW Hearing Aid

Today, disposable, extended-wear contact lenses provide health safety along with comfort and ease of use. Now Marvel provides you with a similar ground-breaking alternative for hearing aids.

With this revolutionary technology, you can enjoy a hassle-free hearing device that makes you look and hear like you used to!

You will change your mind about hearing aids forever once you discover Marvel! Stop saying “What” and start saying “WOW!”

Invisible device is designed to be placed deep within your ear canal so that it is completely undetectable! Insertion takes 15 minutes and requires no anesthetics or surgery.

Invisible devices are designed for extended wear. That means they can be worn for up to 4 months** at a time, 24-hours a day, 7-days a week. There are no batteries to change and no daily maintenance required. Imagine! You can wear Marvel through all your daily activities…from sleeping to talking on the phone, from exercising to showering, and from watching TV to attending a meeting or gathering.

Two soft, flexible silicone seals are used to ensure a stable placement and comfortable fit. In a recent study of patients using extended-wear hearing devices, subjects rated comfort and overall satisfaction as much better than their traditional hearing aids.

* Disclaimer: This site may include information related to certain ailments, physical conditions and their treatment. Any such information should not and may not be used as a substitute for a medical diagnosis or treatment. You should seek the advice of your physician or other qualified health care provider prior to starting any treatment or if you have any questions related to your health, physical fitness or medical conditions.