Features:
1. Suitable for mild to moderate severe hearing loss (Reference hearing loss map)
2. Mini-size hearing aid is a powerful unit with noise reduction feature, perfect for those who want precise sound amplification, it is so small that others will hardly notice.
3. Light and comfortable: device is extremely light, it can be comfortably worn in either ear. With the spring like connection, it can fit in all sizes of ears.
4. A10 battery, low power consumption. Long time service which good for travel.
5. Analog, digital hearing aid, 2/4/6 channels are available;
6. Easy to Operate: Medium size in-the-ear hearing aids, with large volume buttons and battery compartment, easy to operate for the elderly and adults.
7. 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.
8. Gift bundled: We will give a hearing aid box to carry.Every set contains matching battery, earbuds and cleaning brush.Will be great gifts for your friends or families.

Specification:
100% Brand new and high quality
Product Name: Hearing Aid Z20
Colour: Blue(left)/Red(right)/Black(Left)/Black(Right)/Skin(Left)/Skin(Right) OR 1 Pair(See the Dropdown Menu)
Battery: 1*A10 battery
Weight: total about 60g

Max sound out put:122+/- 3dB  
Sound gain:>= 28dB+/- 2dB
Total harmonic wave distortion:<= 3%  
Frequency range:300-4800MHz  
Input Noise:<=26dB  
Voltage:d.c.1.4V  
Current:<=1.2mA
By A10 battery For 5~7 days using

Package included:
1/2pcs × Hearing aid
1 × Storage box
3/6pcs × Earmuffs(different sizes)
1 × Matching battery (A10 included)
1 × Hearing Aid Cleaning Brush
1 × Instructions (Please make sure has read the manual before using).

Q/A:

Notes:
1. After the battery is put into the battery compartment, cover it and buckle it again at the same time, at this time, the charging compartment is completely covered before it can work normally; As a special reminder, fasten the lid again after closing
2. It can reduce the whistling situation, after putting the battery into the battery compartment, do not cover it first, use the battery compartment to pinch it, use the whole "battery compartment" as a handle, stuff the hearing aid into the ear, and then cover the battery compartment and fasten it; The whole process effectively avoids the situation of whistling
3. Why is there a whistling during the wearing process?
It is because, after putting it into a battery, the hearing aid has begun to work, and the process of wearing, especially the process of putting the hearing aid into the ear, is a state of air leakage, that is, in the state of unplugged and air leakage, the working principle of the hearing aid will lead to the occurrence of whine, which is not a problem of the product, this product has added the function of whine suppression in performance, which reduces a large proportion of whine conditions, but can not completely eliminate whine, so in the wearing process, the correct way of wearing it is of great help, and can completely eliminate whine.
4. Battery, it is recommended to use compliant batteries, the product performance is more guaranteed, and the working time is longer.

Instructions:
1. Clean the ear canal before use.
2. Insert the battery,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.

Tips for buyers:
The cause of howling/noise: In order to make a mini size hearing aid, the internal amplifier and the microphone are close to each other. The sound is continuously received and expanded, so it has a certain possibility of produce howling after power-on. At present, small hearing aids and high-power hearing aids on the market can hardly avoid howling, and only full-digital hearing aids can avoid howling.

Ways to avoid howling/noise:
1. Adjust the volume to the minimum before wearing to avoid sudden howling.When the power is high (the amplified sound is large), howling is more likely to occur. Therefore, gradually increasing the volume from low can effectively avoid howling.
2. When the ear canal is completely sealed, there is no howling sound. Therefore, please use hearing aids after cleaning your ear canal, and test the earplugs from large to small to find the most suitable earplugs.
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, and then release it to fully extend the earplug.

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.