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samedi 1 février 2014

The Guide To A Rechargeable Hearing Aid

By Serena Price


Historically, several techniques have been used to solve the problem of hearing loss. In early times, funnel shaped cones or trumpets were used to try solving this problem by collecting sound energy and then guiding the same into the ear. Today, there are a number of devices used for this purpose, both electronic and non-electronic. Among the electroacoustic devices used currently are the bone-anchored aids, cochlear implants, disposable and the rechargeable hearing aid.

Among several other components, the primary ones that you cannot miss in a functional rechargeable hearing aid are the microphone, a signal conditioning, a battery and a speaker which is the receiver. Initially, the microphone receives sound signals, convert them to electronic signals which are either amplified or equalized through the signal conditioning before passing the same to the receiver which convert it back to sound waves recognizable by the ear. It is all powered by the battery.

There are several versions in market today, all designed to meet different tastes and preferences. The ones you would commonly find are the models placed in the ear, ones for the ear behind and those to be placed inside ear canal. Since the ones for ear behind require some custom fittings, they are a little more expensive.

The models for ear canal fitting on the other hands are meant to be invisible which requires placement deeper in the canal. As such, you expect custom fittings given that the size of canal varies by great margins from one person to the next. They are however comes with more natural sound experience, largely attributed to their venting and deeper location. You can find two types of the ear canal models. These are open fit model and extended wear model. The extended wear models, as the name suggests, are designed to stay in the canal for between one to three months. Open fit option fits behind the ear which gives and open air canal.

The major difference between rechargeable hearing aid and the disposable alternative is that former allows for battery replacement while the latter has to be disposed off when the power runs out. As such, it creates inconvenience. The programming has to be done through a remove devices given that the aid is not wired by any manner.

The primary objective of these devices, just like their disposable counterparts, is to assist those with hearing loss problems. They make sounds that are more accessible for the wearers. The greatest benefit of these devices is convenience. There is no need of buying a new one but instead just replace the battery and you are good to go. They may not however be available for placement very deep into the ear as this does not permit frequent removal.

There are several models differing in both the design and functionality and as such, the price range is quite wide. If you choose to search one over the internet, there are hundreds of options from different manufacturers to choose from. Other than just reading the information placed by the manufacturer, it is very important to read through the customer review information.

There are some charitable organizations that offer a rechargeable hearing aid for free or with very good discounts in bid to help people with this kind of problem. You should take advantage of such organizations for better deals.




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