YK-139 Hearing aid
Meet the world again, complete！
without sound Need more care
Relive the most real world
Low frequency noise reduction
Intelligent noise reduction without noise, listening to natural sounds
comfortable to wear Suitable for long-term Wear, does notaffctnormal life
Long-term comfort and comfort
Easy to use
Toggle adjustment, do not understand the manual will also use
Soft medical silicone, durable
Soft texture, can be rotated 180 degrees left to right
Not harsh, comfortable to listen
Effectively handles howling at a speech frequency of 250hz 3000hz
Small size. Portable storage
Only 7-8g, it is very convenient to carry around
Easy to install:
Use two AG13 batteries
The correct way to wear will make you experience better
1. Hearing aid 2. Packing box 3. Earbuds X2 4. Button battery X2
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
6.Remove the battery if you don’t use it for long time.