Universal Common sense:
Hearing aids is a kind of instrument which can improve hearing impairment and improve the communicative ability of others, so the hearing aids in the market are mainly the following types:
Cassette Hearing Aid
Also called pocket or pocket type. The volume resembles the cigarette box, hangs in the chest small pocket or inside pocket. The main disadvantage of the host is that the wire is long, neither beautiful nor convenient. However, because of larger volume, can be installed a variety of functional adjustment switches, to provide better acoustic performance, and easy to make high-power type to meet the needs of serious deafness, the cheapest price.
Ear-type Hearing aid
The shape of the banana curvature, after the ear, generally long about 4~5cm. The receiver opening is connected with a conductive hook made of a hard plastic pipe, put it in the ear-type hearing aids auricle root, the hook through the soft plastic pipe and ear mode earplugs into the ears and ears to help listen to the mouth, some countries the fastest development of this type of hearing aids, many manufacturers can provide $number different specifications of products, the function gradually increased. Now can be made into high-power-type or suitable for low-frequency hearing-oriented deaf-mute children need special type of hearing aids. Because of good performance, the casing can be made of various skin color, after the ear for the hair hidden, often not for outsiders to find, can meet the deaf people's psychological requirements.
Customized Hearing aid
The custom-made hearing aids are "ear-type hearing aids", "ear-type hearing aids" and "deep ear-type hearing aids" collectively. The biggest feature of a custom-made hearing aid is that it is tailored to the shape of each of our ears. This is more comfortable and easy to wear, and can take full advantage of the sound collection function of the outer ear, which is less noticeable; The "deep ear-type hearing aid" has the smallest appearance, and the function of collecting sound with the outer ear is closer to our real ears, and more difficult to be found.
What is the difference between three kinds of hearing aids?
At present, the three kinds of hearing aid cases commonly seen on the market are the following:
1. The box-type hearing aid is cheaper, but has the appearance too big, the use inconvenience, and the function is less and so on disadvantage.
2. Ear-type wear behind the ears, the shape is relatively small, lightweight, has a variety of grades and different functions, the current user many.
3. The main advantages of fixed-mode hearing aids are: small shape, good concealment, according to the shape of the ear canal, wear comfortable, will not fall, not easy to water, into the sweat, conducive to hearing aids maintenance.
How to maintain the hearing aid?
First of all, the habit of cleaning hearing aids every day, with a brush will accumulate around the hearing aids ear crossings, volume adjustment knob and the battery compartment of the wax or other micro-particles brush, and then gently wipe the hearing aid with a soft cloth.
Never use solvents, cleaning fluids or oil agents to clean your hearing aids. Once you wear a hearing aid, you sometimes forget that it is working, so be sure to take out your hearing aid when you are swimming, bathing, or using an eruption. If the hearing aid is damp, do not use a drying tool such as an oven, microwave oven or hair dryer-so that you can damage your hearing aid easily. Instead, remove the damp battery, open the hearing aid battery door, put the hearing aid on the towel and store it in a safe place for the purpose of flooding.
The maintenance of hearing aids, moisture is the key. Remember that hearing aids can not be flooded, wash your face, bathe, swim and rain when you must remove the hearing aids. Any hearing aids Moistureproof method is the same, every night before going to bed to remove the hearing aids, into the container filled with desiccant. When the color of the desiccant is changed, it needs to be processed accordingly and updated when necessary. Hearing aids do not directly contact the desiccant to prevent corrosion by damp desiccant.
Proper cleaning can improve the service life and effect of hearing aids. Because the hearing aids need to wear frequently, the human body produces the excrement (such as earwax, ear secretion, etc.) will affect the service life of hearing aids, so require every person wearing a hearing aid must often clean hearing aids.
The specific cleaning methods for hearing aids are as follows: After daily use, use dry soft cloth to clean the wax and sweat on the surface of the hearing aid. For custom machines, check whether the sound tube is blocked by earwax and whether the microphone inlet is clogged with dust. If the situation is found, the use of special brush to clean it. For the ear-type hearing aids, such as the detection of the ears of the acoustic tube is blocked by earwax, should be clean and clean in time, such as the ear-mode sound tube with small beads, will always be sucked out of small beads or dry. For a box-type hearing aid, the earwax should be cleaned.
(iii) preservation and replacement of batteries
When the user does not need a hearing aid, the battery compartment door should be opened and the battery removed. When the battery power is below a certain degree, the hearing aids will stop working, or issue a "beep" of the beep, or the sound quality becomes rough and unstable, at this time, should immediately replace the battery, change attention to the polarity of the battery. If not in the long run, the battery should be removed from the other to prevent leakage of the battery corrosion hearing aids.
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