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.
In addition:If you do not know how to use it or there is a problem with your hearing aid, please do not rush to leave a negative review and contact us. Thank you.
Specification：
1.Max sound output: 110±5dB
2. Sound gain: ≥30dB
3. Total harmonic wave distortion: ≤10%
4.Frequency range:300~4000Hz
5.Input noise: ≤40dB
6.Voltage: 3.7V
7.Current: ≤ 4mA
Feature:
1. Mini BTE design
2. High-power chip noise reduction
3. A variety of different earplugs, suitable for different ear canal sizes
4. Low battery reminder, USB rechargeable (no need to replace the battery)
5. Charging for 4-6 hours, working for 20 hours
Package Included:
1 x hearing aid
3 x Ear Tips (Different Sizes)
1 x User Manual
1 cleaning brush head
1 x USB charging cable
Kindly Remind：
1.Adjust volume to the minimum before wearing.
2.Choose an earplug of slightly bigger size to avoid whistler.
3.Increase volume gradually to avoid sudden increase in sound.
4.If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight,
the appropriate choice of earplugs and plugged, make sure no air leakage.
5.Keep the ear plug clean.
Intelligent noise reduction without noise
Special processing of sounds of different frequencies
allows you to listen to what you want
Ergonomic and comfortable to wear
Fits closely to the ear canal, fits ergonomics and is comfortable to wear every day.
Mini bionic sound quality is clear
Provides different sizes of earplugs to choose from, which are more suitable for the ear canal, digital processing chip, better noise eduction optimization, and clearer sound quality
Small & light, Invisible Design
Smaller than the back-of-the-ear body, it isot easy to detectinvisible wearing, which meets the user's requirements for wearing image
