Product name: booster

Product model: f-138t

Packing quantity: 200PCS

1. How to wear hearing AIDS?
For the first time, you may feel that the sound is not clear enough. Because you have been used to the original hearing condition, when the use of hearing AIDS, hear is not familiar with the sound, so can not adapt. The main way to solve the problem is to carry out necessary adaptive training. Don't wear it for too long at the beginning, and don't make it loud.

2. How to conduct adaptive training?
Hearing aid adaptability training is not complicated, the general principle is to adhere to wear, step by step to adapt:
(1) from the daily wear time, from short to long;
(2) in terms of volume adjustment, it is advisable to reduce the volume first and then increase it;
(3) from the communicative environment, should be quiet before cao miscellaneous, first simple before complex.
This step by step, to make you through the adaptation period as soon as possible, so that the role of listening to the maximum play.

3. Why does hearing AIDS produce loud noises?
The contact between the earplug and the ear canal is not tightly closed, and the amplified sound leaks out from the gap and then returns to the microphone and is amplified again, resulting in a loud noise. This phenomenon is similar to the sound we often hear when the microphone approaches the speaker.
(1) the hand or an object is close to the hearing aid, because part of the sound is reflected on the palm or object and then transmitted back to the microphone for further amplification.
(2) the hearing aid is not completely plugged into the ear canal or not tightly sealed with the ear canal wall, resulting in the amplified sound leaking and being transmitted back to the microphone.
(3) there is a large amount of earwax in the ear, which is blocked. The amplified sound is reflected on the earwax and then transmitted to the microphone, which will also generate feedback.

4. How to avoid screaming?
(1) first adjust the volume adjustment knob of the hearing aid to the position of \"1\", then plug the ear plug into the ear and try to plug it tightly, and then adjust the volume to the clearest position.
(2) if the earplugs are not tight enough, please try another earplug that is more suitable.