Hearing aid is a device that helps people with hearing impairment addresses this difficulty. Hearing aids vary in designs and functions, however, almost all types of hearing aids have similarity in terms of its electrical components. The components that can be found in almost all hearing aids types are microphone, amplifier, loudspeaker and batteries. The variations in hearing aids types differ in design, in add-on features and whether is uses analog or digital technology to amplify sounds.
Types of Hearing aids
BTE. Behind the Ear Aids are ideal for young children as this type of hearing aid is sturdy and can easily accommodate replacements of earpieces. This feature is important with the growing features of a child. This aid is placed under the ear with all components contained in a small plastic case that is connected by a clear tube to the earpiece. A newer model, mini BTE, is a good variation of this hearing aid. Although this uses the same principle as that of its predecessor, it now uses an almost invisible tube that is connected to the ear canal. The casing behind the ear is fairly small as well. As such, this newer version is much comfortable to use and a lot more discreet in terms of visibility than the previous model.
ITE. In the Ear Aids have all components placed inside a case that is put to cover the ear. This aid is larger than BTE and will seem humongous if compared with the Mini BTE. Older people who have difficulty handling smaller aids find this ideal to use.
ITC. In the Canal Aids contained all components in a case that will fit perfectly into the ear canal. They are smaller than Mini BTE and no longer need an earpiece as the entire piece will function as the earpiece. Another variation of this hearing aid is the CIC or the Completely in the Canal Aids that are placed deeper into the ear canal. People who find their impairment embarrassing opt for this type to hide the hearing aids from view.
Add-Ons and Other Features of Hearing Aids
As technology advances, there are optional features that address certain conditions and situation of the users. One very interesting feature is the inclusion of the directional microphone in most hearing aids. In a noisy environment, users will be allowed to direct this microphone to a sound that is coming from a specific direction that the user needs to hear. There are also hearing aids that provide the Telephone switch wherein the user can switch from normal mode to telephone mode if the user needs to receive a call from the telephone. As there is a huge difference between the audio of a face to face conversation and a telephone conversation, this feature is proven very helpful. With more conversations taking place over the phone, this feature should be part of basic package of every hearing aid. Direct audio input is another helpful feature that allows the user to plug the earpiece to a listening gadget like FM radio, TV, CD player or the likes. Currently, newer models of hearing aids also have earpieces that enhance sound quality.
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