Jinghao JH-A39 User manual

JH-A39

07 08
Getting to know your hearinga aids
Left Right
Front of
charging
base
Rear of
charging
base

Size & Weight of Hearing Adis & Charging Base

QUICK START GUIDE
Changing hearing aid earplugs
01
Recharging
02
Hearing device:
Rated power supply current consumption: ≤6mA
Charging time: 1.5~2 hours
Hearing aid Work time: >10 hours
Hearing aid charging times (double machine): > 3 times
Charging case working voltage: 4.2V
Hearing aid charging current: ≤30mA
Charging case charging time: 3.5-4.5 hours

Instruction to use
To distinguish left and right
1.L/R note: hearing device marked with L/R, L for left ear, R for right ear.
2 .Choose and install earplugs
Choice of earplug specifications:
The hearing device comes with medium size
earplug. Please select suitable earplug
accordingly to your ear canal size.
Note: It’s very important to select suitable earplug, you will hear whistling sound if you chose
too big or too small earplug.

Earplug installation :
Select a suitable earplug, open and rotate the hearing aid into the head of device.
Wearing
Rotating hearing device gently into the ear,
Note: you can press big button to adjust volume ,to avoid too high sound hurt your ear,since minimum
level before you put the hearing device into your ear canal is better,and then you can adjust suitable
volume based on your hearing loss.

Operate the hearing device
Turn on and off
1)Long press BIG button over 3 seconds ，hearing adids
until you hear the “beep” sound =hearing aids is ON
Use your finger tip to cover the tip of the Hearing Amplifier to lower the high pitch sound
while inserting it in your ear canal. The high pitch will stop once the device is fully inserted into
your ears
2) Press and hold Power Button/BIG BUTTON for 3 seconds
when you hear twice “Beep” and no voice from the device
To adjust the volume-6 sound levels
Press to click the Power Button/big button to change the sound volume
Note: There are 6 levels of sound volume. Each time you press to click the power button, you will
hear a “Beep” sound, indicating the next volume level. At the highest volume level 6, you will hear 3
continuous “Beeps” to indicating you are now at the highest sound volume of level 6. If you press to
click the power button again, it will cycle back to the lowest level 1 again

Before charging , please turn off the device, make sure it's not working .
Then put themachines into the chargingbase.
During charging period ,
it’s light showing BLUE , once charging is complete the indication light
will shown WHITE. It will take 3.5 hours for 2 hearing device full
charge.Will lasts for 10-12 hours working after fully charged.
Charging hearing aids
Charging base:
Connect the Micro-USB line to the charging case to make the charging case
fully charged.
Noted:
1.Don’t covering the microphone with your fingertip,place the hearing device.
in the ear properly .
2.Make sure your get a comfortable fit and that themicrophone is not being
blocked
3.When the charging case is fully charged, you can use it to charge the
hearing devices with or without the USB cable.

MAINTENANCE AND CLEAN
Cleaning
For hygiene reasons and to maintain functionality, cleanyour hearing instruments daily.Clean your
hearing instruments with a soft, dry tissue.Regularly clean the tubes with special cleaning wires.
NOTE: Do not put the hearing instruments in water. Donot put your device and accessories in water.
Storage
During longer periods of non-use, store your hearing instruments in a drying system in order
to prevent thepenetration of moisture

Technical Specifications of Nano CIC unit
Charging case working voltage: 3.7V.
Enviromental temperature: -10°C~+ 40°C ,
relative humidity: <80% , Atmospheric pressure:
86KPa -106 Kpa.
Work time：12-15hours
Charging time：3.5 hours
MAX.SSPL(OSPL90)
≤120dB+3dB
High FrequencyAverage(OSPL90)
103dB±4dB
Average gain
22dB±5dB
Equivalent input noise level：
≤35dB
Total Harmonic Distortion
≤10%
Frequency Response Range
300Hz～3000Hz
05
What's in the box
Ear Dome Cleaning Brush&Bar
06
Usb Line
Charging Base
Hearing Aids

ADAPTING TO YOUR HEARING AID
It is recommended to start wearing
your new hearing aid for at least 1-2
h o u r s p e r d a y a t h o m e w h i l e
enganging in regular conversation,
watching TV or performing household
task to help your ears acclimate to your
hearing aid. It is common not to notice
much of a difference within the first
week.
Introduce your hearing aid to quiet
outdoor enviroment such as a park or
open space. As your ears get used to
the device, extend the hearing aid to
use 3-4 hour s per day. Y ou ma y
notice that you start hearing sounds
you previously were not able to.
13
Regular and outdoor conversations
s h o u l d n o w b e t o l e r a t e d . T r y
bringing your hearing aid with you to
a restaurant work. Extend daily use
to 5 to 6 hours per day but don't
over to it as you are still getting used
to the device.
Now is the time to start enjoying all
the sounds of the world again. Try
your hearing aid in any environment
a s y o u s h o u l d n o w b e w e l l
acclimated to the amplification.
14

Troubleshooting
Problems
solutions
No sound or weak sound
•Turn on the device
•Charge the hearing devices
•Clean or replace the tube or earplug
•Contact your distributor
Sound is distorted
•Charge the hearing devices
•Decrease the volume level
•Clean or replace the tube or earplug
Hearing Device does not work
•Turn on the device
•Make sure the hearing devices with
power
•Charge the hearing devices