Hearing aids - How to choose the right one
Many types of hearing aids exist. So which is best for you? Find out what to consider when choosing a hearing aid.
Perhaps you've thought about getting a hearing aid, but you're worried about how it will look and wonder whether it will really help. Knowing more about the hearing aid options available to you, what to look for when buying a hearing aid and how to break it in may help alleviate some of your concerns.
Hearing aid styles
All hearing aids contain the same basic parts to carry sound from the environment into your ear. However, hearing aids do come in a number of styles, which differ in size and the way they're placed in your ear. Some are small enough to fit inside your ear canal, making them almost invisible. Others fit partially in your ear canal.
The following are common hearing aid styles.
Completely in the canal (CIC)
Completely-in-the-canal hearing aids are molded to fit inside your ear canal and can improve mild to severe hearing loss in adults. 
A completely-in-the-canal hearing aid:
- Is the least noticeable in the ear
- Is less likely to pick up wind noise because the ear protects the instrument
- Is easy to use with the telephone
- Uses smaller batteries, which typically don't last as long as larger batteries
- Typically work fully automatic
- May not fit well in smaller ear canals.
An in-the-canal hearing aid: (ITC) 
- An in-the-canal hearing aid fits partly in the ear canal, but not as deeply as the completely-in-the-canal aid. This hearing aid can improve mild to moderate hearing loss in adults.
- Is minimally visible in the ear
- Is easy to use with the telephone
- Includes features that won't fit on a completely-in-the-canal
Half-shell
A larger version of the in-the-canal hearing aid, the half-shell is custom molded and fills the lower portion of the bowl-shaped area of your outer ear. This style is appropriate for mild to moderate hearing loss.
A half-shell hearing aid:
- Includes features noted for in-the-canal hearing aids
- Is bigger than an in-the-canal hearing aid
- Is a little easier to handle than are the smaller hearing aids
- Fits most ears
In the ear (full shell)
An in-the-ear (full-shell) hearing aid is custom made and fills most of the bowl-shaped area of your outer ear. This style is helpful for people with mild to severe hearing loss.
An in-the-ear hearing aid:
- Is more visible to others
- May be more likely to pick up wind noise
- Features, such as volume control are easier to adjust
- Is generally easier to insert into the ear
- Uses larger batteries, which typically last longer and are easier to handle
Behind the ear (BTE)
Behind-the-ear hearing aids hook over the top of your ear and rest behind the ear. The hearing aid picks up sound, amplifies it and carries the amplified sound to an ear mold that fits inside your ear canal. This type of aid is appropriate for mild to profound types of hearing loss and for people of all ages.
A behind-the-ear aid:
- Range from large, most visible type of hearing aids, to smaller, streamlined and barely visible versions
- Is capable of more amplification than are other hearing aid styles
- Is less susceptible to ear wax damage
Open fit
These are very small behind-the-ear-style devices. Sound travels from the instrument through a small tube or wire to a tiny dome or speaker in the ear canal. These aids leave the ear canal open, so they are best for mild to moderate high-frequency losses where low-frequency hearing is still normal or near normal. 
An open-fit hearing aid:
- Is the most natural sounding
- Is less visible
- Doesn't give a plugged or occluded feeling
- Tends to be the most automatic of all hearing aids
Hearing aid electronics
Hearing aid electronics control how sound is transferred from the environment to your inner ear. All hearing aids amplify sound, making them louder according tom your hearing loss so that you can hear them better. Most hearing aid manufacturers now only produce digital hearing aids — analog hearing aids are being phased out.
With digital technology, a computer chip converts the incoming sound into digital code, then analyzes and adjusts the sound based on your hearing loss, listening needs and the level of the sounds around you. The signals are then converted back into sound waves and delivered to your ears. The result is sound that's finely tuned to your hearing loss and listening preferences. Digital hearing aids are available in all styles and price ranges.
Hearing aid options
Some hearing aid options improve your ability to hear in specific situations:
Directional microphones.
These microphones pick up sounds coming from in front of you better than coming from behind or beside you. This technology improves your ability to hear when you're in an environment with a lot of background noise. Typically you'll have both a regular microphone and a directional microphone, so you can switch between the two types. Some hearing aids automatically switch between the regular and directional modes.
Telephone adapters.
This technology, also referred to as telecoil T switches, makes it easier to hear when talking on the telephone. The telecoil eliminates the sounds from your environment and only picks up the sounds from the telephone. Some hearing aids switch automatically when the phone is held up to the hearing aid, while others require flipping a switch.
Bluetooth technology.
Some new hearing aids can transmit sound from Bluetooth devices, such as Bluetooth cell phones. These hearing aids require an interface that wirelessly picks up the Bluetooth signal from Bluetooth compatible devices and transmits the signal to the hearing aid. You don't have to hold the phone to your ear or hearing aid to hear the sounds.
Remote controls.
Some hearing aids use a remote control that makes volume control adjustments or other changes without touching the hearing aid. The remote may also make other adjustments, such as activating the directional microphone or increasing the noise reduction. Some hearing aids can actually use your telephone or cell phone as a remote control.
Before and after the purchase: Steps to take
When looking for a hearing aid, explore your options to understand what type of hearing aid will work best for you. Also:
- Get a checkup. See your doctor to rule out correctable causes of hearing loss, such as earwax, an infection or a tumor, and have your hearing tested by a hearing specialist.
- Contact a reputable hearing specialist. A good hearing specialist works with you to find a hearing aid that best fits your needs and desires. This person will test and evaluate your hearing for you take an impression of your ear canal, choose the most appropriate aid and adjust the device to fit well.
- Ask about a trial period. A hearing aid should come with an adaptation period. It may take you 1- months to get used to the device and decide if it's useful. Have the seller put in writing the cost of a trial and whether this amount is credited toward the final cost of the hearing aid.
- Check for a warranty. Make sure the hearing aid includes a warranty that covers both parts and labor for a specified amount of time.
- Beware of misleading claims. Hearing aids can't restore normal hearing or eliminate all background noise. Beware of advertisements or salespeople who claim otherwise.
Plan for the expense. The cost of hearing aids varies widely — from several hundred dollars to several thousand dollars. Professional fees, remote controls and other hearing aid options may cost extra. Talk to your hearing specialist about your needs and expectations. If cost is an issue, good instruments are still available at reasonable prices. Some private insurance policies cover part or all of the cost of hearing aids, but you need to check with your policy to be sure. Medicare doesn't cover the cost of hearing aids.
After the purchase: Breaking in your hearing aid
Getting used to a hearing aid takes time. Your listening skills should improve gradually as you become accustomed to amplification. The sound you hear is different because it's been modified to bring you a full range of hearing back. Even your own voice sounds different when you wear a hearing aid.
When first using a hearing aid, keep these points in mind:
- Although hearing aids can make a substantial improvement in your life, hearing aids won't return your hearing to normal.
- Allow time to get used to the hearing aid. It may take several weeks or months before you're used to the hearing aid. But the more you use it, the more quickly you'll adjust to amplified sounds.
Over time you'll adjust to the device and enjoy your enhanced ability to hear and communicate in a variety of situations. By wearing your hearing aid regularly and taking good care of it, you'll likely notice significant improvements in your quality of life.
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