Hearing Aids Mini Invisible Hearing Sound Amplifier Audifonos J20 Portable Best Mini Adjustable Device Hearing Aid
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Brand Name: IncenSonic
High-concerned chemical: None
Origin: China Mainland
Model Number: J20
battery: 10A
function: hearing aid
color: red,blue
Drop Shiping: support
Audiological Features
Low Equivalent Input Noise
Super Clear Sound
Low Frequency Cut Filter
Functional Features
Volume Control Mode:Rotated VC0~25Db
Colors available：Red, Blue
Note
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. If it still does not work, please check the chat window leave me a message.
5.Keep the ear plug clean.
6.Remove the battery if you don't use it for long time.
