People who are unable to hear properly usually make use of hearing aids. These are electroacoustic devices put behind or inside the ears. They amplify and modulate sound by gathering the sound energy then directing it to the ear canal. They have a microphone, amplifier and speaker. There are various hearing aid types in the market and they vary in power, circuitry and size.
Body worn aids: Have earmolds, case and cord and were some of the 1st inventions. Their amplifying system is found inside the casing. The earmolds are inserted in the ears to protect them and for sound conduction. They produce loud amplification since they use some vacuum tubes. Individuals with profound loss would thus find them ideal.
Behind the ear aids (BTE): These have also an earmold, tube and case. The case has an amplification system. The sound can be routed electrically or even acoustically from the case to the earmold through the tube. They are ideal for all people including children and can be used for profound to mild loss.
In the ear aids (ITE): They are put in the outer bowl of the ear and are thus visible at times. They are ideal for those with loss that is severe or mild. Normally, these devices are custom made to fit inside your ears. New models are available today made of silicone materials. Such materials do not require the regular, costly replacement.
Extended wear aids: These are placed inside the ear canal and are invisible. They are custom made and are usually worn for about 3 months continuously. Since they are placed close to eardrums the sound localization and directionality is improved. They can be used by active people with mild or moderately severe loss.
These are just a few of the hearing aid types. These devices make sounds more accessible and help the user to listen, communicate and participate more fully in day-to-day activities. The type to use may depend of the severity of the loss.
If you are in the market for Hearing aid types visit the online specialist www.discounthearingaids.org.uk.
Source: http://expertarticlesabout.com/health-fitness/different-hearing-aid-types-in-the-market
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