Adjustable Volume Hearing Aids BTE Ear Hearing Amplifier Sound Amplifier Rechargeable Hearing Device for The Elderly

Tips for buyers:

Causes of whistling/noise: In order to make a small hearing aid, the internal amplifier and microphone are placed close to each other. The sound is continuously received and expanded, so there is a certain possibility of whistling after power-on. At present, small hearing aids and high-power hearing aids on the market are difficult to avoid whistling, and only fully functional digital hearing aids can avoid whistling.
Ways to avoid whistling/noise:
1. When the power is large (the amplified sound is large), it is more likely to produce howling. Therefore, gradually increasing the bass volume can effectively prevent howling.
2. When the ear canal is completely closed, there is no whistling sound. So after cleaning the ear canal, put on the hearing aid, test the earplugs from large to small, find the most suitable earplugs, and ensure that there is no air leakage.
3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, then release it to fully extend the earphone.
4. In the shutdown state,turn the volume of the hearing aid to the lowest level, then insert it into the ear. Make sure that the earbud completely fills the ear. Then turn on the power button and slowly increase the volume to a suitable volume.
5. Users who have not heard the sound for a long time may cause hearing loss due to the long-term failure to hear the sound, resulting in the hearing aid still unable to hear the sound. Please persevere, continue to stimulate the growth of the hearing nerve, and you will hear after a while. If you are not sure whether your hearing aid is working properly, you can try the product on a person with normal hearing.
6. Please pay attention to cleaning the ear canal and keep the earplugs clean.

Feature
1. Max sound gain:30±5,Suitable for mild to moderate hearing loss. (Reference hearing loss map)
2. Binaural universal design.Optional medical silicone catheter or thin wire catheter.
3. Charging time: Charging 2-4 hours,can last about 10 hours.Saves your trouble to buy button batteries frequently.
4. If the ear dome is not completely fill into ear canal or air leaks at the ear dome, which will causes a annoying whistle.We give 3 different sizes of earplugs to reduce howling and noise.

Product Details
Max sound output :130±4
max sound gain:30±5
Frequency range:100Hz-4000Hz

Instructions
1.Clean the ear canal before use.
2.Charge the hearing aid,turn the botton to N
3.When using it for the first time, please turn the volume to the minimum and then slowly increase it.
4,Try and select suitable ear dome. Install the ear dome and make sure it fits snugly.
5,Insert the hearing aid into the ear canal,adjust its position in the ear canal until the soft eartip is fully deployed and fill the ear canal.

Notice
1. If the earbuds cannot fill the ear canal, it may cause feedback or whistler,So repeat step 5 to reduce howling and noise.
2. Turn off or remove the battery if you don’t use it.