leel JH-A610 User manual

Instruction Manual Model: JH-A610
Please read this user manual thoroughly and
completely before using the product.
HEARING AMPLIFIER
VER: A610-20210609-V01

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CONTENTS
03
06
07
07
08
13
11
14
21
22
24
27
29
30
31
32
16
20
I.IMPORTANT SAFETY INSTRUCTIONS
1.CONTRAINDICATION
2.WARNINGS
3.NOTICE
II.DO NOT USE IF ANY OF THE FOLLOWING APPLY TO YOU
III.MATTERS NEEDING ATTENTION, WARNINGS AND TIPS
IV.HOW TO USE YOUR DEVICE
1.QUICK GUIDE
2.HOW TO APPLY DOMES
3.LEFT & RIGHT HEARING AMPLIFIER MARKINGS
4.WEARING/REMOVE HEARING AMPLIFIER
5.TURN ON/TURN OFF
6.VOLUME ADJUSTMENT
7.HEARING AMPLIFIER CHARGING
8.HOW TO USE THE CHARGING CASE
9.CLEANING
V. MAINTENANCE AND CLEAN
VII.HEARING AMPLIFIER CARE
VII.TROUBLESHOOTING GUIDE
VIII.TIPS FOR BETTER COMMUNICATIO
IX.TECHNICAL SPECIFICATION
X. ACCESSORIES LIST
XI.NORMALIZED SYMBOLS
XII.MAINTENANCE, STORAGE, AND DISPOSAL
XIII.WARRANTY

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I.IMPORTANT SAFETY INSTRUCTIONS
1. CONTRAINDICATION
The device should not be used in the following situations:
- Patients with chronic suppurative otitis media (CSOM),congenital
ear atresia, or any type of ear discharge
- Anyone under 6 years old
2. WARNINGS
- Keep small parts (hearing instrument, ear domes, battery or other
detachable parts) that can be swallowed out of children’s reach.
Dropping, immersing in liquid, exposure to strong electromagnetic
fields or excessive heat will damage the hearing amplifiers.
Remove devices prior to any type of X-ray, MRI, or CT scan. If parts
become stuck in the ear canal, seek medical assistance - do not
attempt to remove by yourself.
3. Notice
- Do not use at high volume for extended periods of time - ear injury
can result.
- If you experience any pain or strong discomfort using the devices,
remove and consult a doctor.
- Routine maintenance to keep the device clean is required.
Ensure that ear domes are free of debris and moisture at all times.
- Avoid shocks or dropping the product.
- Do not store or use the product in environments of high humidity
or temperature (such as sauna room), to avoid damage.
- Batteries should be properly recycled and not disposed in the
trash.
- Keep the devices away from small children. Injury or damage may
result.
- Do not set volume levels too high. Listening with high-output
devices for extended periods at high volume levels can cause
further hearing damage.
- Do not share your hearing amplifiers with others. Using a hearing
amplifier configured for someone else can result in hearing
damage or injury.
- Monitor for any unusual skin reaction. If you notice any allergic
reaction (itchiness, swelling, or rash), stop wearing the hearing
amplifiers and consult a medical specialist.
- Do not touch the hearing amplifiers to any type magnet or magne-
tized object. Your hearing amplifiers are delicate electronic
instruments and may be damaged by contact with strong magnetic
fields.
- Do not attempt to open or repair the devices yourself. Damage
Warning
Read all the information in this instruction manual and any other
literature included in the box before using the device.
Warning

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II. DO NOT USE IF ANY OF THE FOLLOWING APPLY
TO YOU:
can result and will void the warranty.
- Do not store your devices in a hot/humid locations. You should
never leave your hearing amplifiers near heating appliances or in
direct sunlight.
- Do not leave your hearing amplifiers in the car as inside tempera-
tures can reach dangerous levels which could damage the devices.
- Do not use the hearing amplifiers together with a cell phone
earpiece directly - excessive noise and distortion may result.
Instead, use via Bluetooth pairing with your cell phone. Radio
wave emissions from mobile phones can cause noise in the
hearing amplifiers or result in reduced volume.
- Please contact the MANUFACTURER:
• For assistance, if needed, in setting up, using or maintaining
your devices or
• To report any unexpected operation or events
1) Congenital atresia of external ear or deformity of any part of the
ear canal
2) Deafness is unstable, and the degree of hearing loss often
fluctuates
3) Persistent headaches, dizziness, earaches, tinnitus or other
symptoms that are not suitable for adaptation
4) Sudden onset of hearing loss within the past 3 months; rapid
progressive deafness; unilateral hearing loss or other acute ear
disease;
5) Effusion (secretions/discharge) in the ear and/or frequent
purulence (pus)
6) Central deafness (central nervous system) or non-organic
deafness
7) Patients with acute otitis externa and tympanitis
8) Patients with acute and chronic suppurative otitis media (in the
period of purulent infection)
9) Patients who are allergic to the materials of this product
Specific warnings / statements
Keep small parts away from and out of children´s reach to avoid
accidental ingestion
Warning not to use in explosive or oxygen-enriched atmospheres, as
doing so may damage the device
Warning that it should only be used by intended person as using
hearing amplifiers designed for someone else may result in hearing
damage
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1. Do not immerse the hearing amplifier in any liquid. Remove the
hearing amplifier before swimming or bathing. After swimming or
washing, wait for the ear canal to dry before wearing the hearing
amplifier.
2. After removing the hearing amplifier at night, it should be placed
in a case with a desiccant if possible, protected from light, high
temperature and high humidity environment.
3. The external surfaces of the hearing amplifier should be kept
clean, and earwax in the ear domes should be cleaned out daily
4. Applicable objects: Suitable for people with air-conducting
hearing loss of about 30-50dB
5. When you do not use hearing amplifiers, please charge the
product regularly to avoid battery damage; the recommended
charging time interval of hearing amplifiers is ≤28 days
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III. Matters needing attention, warnings and tips IV.HOW TO USE YOUR DEVICE
1.【QUICK GUIDE】
1. Volume Control
2. Microphone
3. Ear Dome
4. Charging Contacts
5. In Ear Detection Sensor
12
3
4
5
1.Charging your hearing amplifiers.
* Before using your hearing amplifier for the first time, it is recom-
mended to charging when it light in green and the light turn off in
dicates charging is complete.

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2.【HOW TO APPLY DOMES】
Step 2: Push the ear dome rim membrane outward.
Step 3: Hold on to the end of the hearing amplifier and push firmly
to ensure that the dome is fastened securely.
12
L M S
Please follow these steps to mount domes, because Incorrect
dome replacement could result in the dome being left in the ear
when you remove the hearing amplifier.
Step 1: Choose a suitable size ear dome.
2.Volume adjustment
To increase the volume, turn the volume control towards the "+"
direction (forwards). To decrease the volume, turn the volume
control towards the "-" direction (backwards).
After placing your hearing amplifier in the charger, the indicator will
show the charging status of the battery until the hearing amplifier is
fully charged. When fully charged the indicator will be constantly
on, i.e. solid green light.
Turn ON/OFF
Turn ON: Take the hearing amplifier out of the charging case, it will
enter the standby status. The hearing amplifier will turn on
automatically in 3 seconds when you wear the hearing amplifier
correctly in the ears.
Turn OFF: Place back to charger case to turn off.
12

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3.【LEFT & RIGHT HEARING AMPLIFIER MARKINGS】
4.【WEARING/REMOVE HEARING AMPLIFIER】
There is a L or R marking on the hearing amplifier. This will tell
you if it is a left or a right hearing amplifier.
Notes:
After the ear dome is installed, pull the ear dome gently to see if it
is firmly installed and ensure the ear dome does not fall off easily.
L marking for left
hearing amplifier.
R marking for right
hearing amplifier.
For comfort, your hearing amplifier always automatically when you
remove them.
The in ear detection sensor will carry out real-time intelligent
detection on the operation status of the hearing amplifier. When the
hearing amplifier is removed, it will automatically enter the standby
status. When you place the hearing amplifier in the ear, it will
automatically turn on.
4.1 Wearing hearing amplifier
Step 1: Hold the hearing amplifier body (hard part), place in the ear
(Make sure it is in right direction like picture).
Step 2: Move the body slightly into auricle for holding.
4.2 Removing the hearing amplifier
Step 1: Grasp the protruding hearing amplifier and remove it.
Notes:
1. It may be in few circumstances that the ear dome remain
attached to the auditory meatus after the hearing amplifier is
taken out.
In that case, please ask a professional doctor to take the ear
dome out.
12
2. Before the hearing amplifier is appropriately secured, it may give
out
the creak sound, which is a normal phenomenon. The creak sound
can be used as a reference to determine whether the hearing
amplifier
is secured. If the hearing amplifier gives out squeaking, please
check if
it is taken on correctly; if so, but the squeaking remains, please
replace with the other set of ear dome. When the hearing amplifier
is not in use, please turn it off without delay.
3. When the hearing amplifier is not functioning properly, please
check the “Troubleshooting Guide”. If none of the solutions work,
please contact our after-sales service team.

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5.【TURN ON/TURN OFF】
6.【VOLUME ADJUSTMENT】
Notes:
1. It may be in few circumstances that the ear dome remain
attached to the auditory meatus after the hearing amplifier is
taken out.
In that case, please ask a professional doctor to take the ear
dome out.
2. Before the hearing amplifier is appropriately secured, it may give
out
the creak sound, which is a normal phenomenon. The creak sound
can be used as a reference to determine whether the hearing
amplifier
is secured. If the hearing amplifier gives out squeaking, please
check if
it is taken on correctly; if so, but the squeaking remains, please
replace with the other set of ear dome. When the hearing amplifier
is not in use, please turn it off without delay.
3. When the hearing amplifier is not functioning properly, please
check the “Troubleshooting Guide”. If none of the solutions work,
please contact our after-sales service team. Note: The hearing amplifier built in with ‘delay turn on’ function,
after placing correctly in the ear canal, automatically turn on after 3
seconds delay from the ‘beep’ tone.
To increase the volume, turn the volume control towards the "+"
direction (forwards). To decrease the volume, turn the volume
control towards the "-" direction (backwards).
12
Turn On: Take the hearing amplifier out of the charging case, the
hearing amplifier will enter the standby status. The hearing amplifi-
er will turn on automatically in 3 seconds when you wear the
hearing amplifier correctly in the ears.
Turn Off: The hearing amplifier will automatically enter the standby
status when you have remove it from your ear. Put the hearing
amplifier back into the correct slot of the charging case , they will
automatically turn off and start charging.

7.【HEARING AMPLIFIER CHARGING】
8.【HOW TO USE THE CHARGING CASE】
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Micro USB Cable
1
2
3
4
5
6 7
5V 1A
1. Lip
2. hearing amplifier charging inserts with left/right indicators
3. Left-side hearing amplifier charging indicator
4. Charging case charging indicator
5. Right-side hearing amplifier charging indicator
6. Battery check button
7. Micro USB connection to external power supply
Put the hearing amplifier back into the correct slot of the charging
case, they will automatically turn off and start charging. Orange
light will indicate hearing amplifiers are charging. After fully
charged, they will light in green and the light turn off in dicates
charging is complete.
(See details in table for Charging Indicator Changes of the
Charging Case)
*Note: hearing amplifier Low Power: You will hear the notification
sound when the hearing amplifier battery drops below 25%, and
when the battery below 10%, you will hear the notification sound
again.
8.1 Plug the small Micro-USB cable tip into the USB charging port
of the Case. Plug the large USB-A end into a USB-A power source
such as a wall charger or your computer.
L CASE R L CASE R

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8.2 The indicator light will show the charging status of the battery
until the hearing amplifier is fully charged. When the case is
charging, the indicator shows a orange solid light, and fully charged
the indicator light will shows a solid green light will be constant and
the light turning off indicates charging is complete.
8.3 With the hearing amplifiers in the case, all charging will
automatically turn off when the case and hearing amplifiers are
fully charged. The case will continue charging with or without the
case lid closed but it is recommended to close the lid when
charging overnight to keep out dust and moisture.
8.4 The charging process will automatically stop when the case
and hearing amplifiers are fully charged, so the hearing amplifiers
can be safely left in the charger. Place it on a flat even surface
away from exposure to moisture, dust, or extreme temperatures.
*The fully charged case offers 3 full charging cycles for a pair of
hearing amplifiers.
L CASE R
L CASE R
Charging Indicator Changes of the Charging Case
Orange Light Flashing Indicator off
Solid Orange LightSolid Green Light
Hearing
aid
Charging
Charging
Case
Charging
Discharging
Power
100%
100%
≥ 25%
≥ 25%
≤ 25%
≤ 25%
(Charging Case
battery below 25%)
Left hearing
aid charging
indicator
Charging
indicator of the
charging case
Right hearing
aid charging
indicator
Flash

9.【CLEANING】
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9.1.Cleaning the ear domes
Remove any earwax buildup using the enclosed tool. Wipe clean
with a tissue or soft cloth.
9.2.Cleaning Tool
Use a soft cloth or tissue to wipe any moisture, perspiration,or
debris from the surface of the tool.
Note: Do not use alcohol or other cleaning solvents to clean the
tool as this could damage the protective covering.
9.3.Daily maintenance
It is important to keep your devices clean and dry. On a daily
basis, wipe them clean using a soft cloth or tissue. To avoid
potential damage from excess humidity or perspiration, the use of
a drying kit is also recommended.
8.5 Charging case Turn ON/OFF
Press and hold the lower part of button for 5 seconds until the solid
orange light indicates the charging case is off.
*Note:
1.To check the remaining battery status of the charging case, press
the battery check button. The indicator will show the status.
2.Charging case Low Power: The charging case indicator will flash
orange when the charging case battery drops below 25%, please
charge the case.
3.When the case is fully charged, the indicator will show a solid
green light will be constant and the light turn off indicates charging
is complete.
4.When the hearing amplifier and case is not functioning properly,
please check the “troubleshooting guide”. If none of the solutions
work, please contact our after-sales service team.
Indicator will flash in
green once a second,
flashing by 1 second
alternately and lasting
by 3 times
Charging case is turn on
Indicator will flash in
orange once a second,
flashing by 1 second
alternately and lasting
by 3 times
Charging case is turn off

- Keep your hearing amplifiers clean. Extreme temperatures (heat
or cold), moisture, and foreign substances can result in poor perfor-
mance.
- Use the cleaning brush tool or soft cloth to clean debris from
around the buttons, microphones, and charging contacts; inspect
the receiver, ear tips, and charging case regularly.
- Never use water, solvents, cleaning fluids or oils to clean your
hearing amplifiers.
- Charging contacts should always be kept clean and dry.
- Always store your hearing amplifiers in the charging case when
not in use or cleaning.
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1. Daily maintenance
It is important to keep your devices clean and dry. On a daily
basis, wipe them clean using a soft cloth or tissue. To avoid
potential damage from excess humidity or perspiration, the use
of a drying kit is also recommended.
2. Care and maintenance
When not in use, store in a secure area away from small children
and pets.
Do not place hearing amplifiers or charging case near high-tem-
perature areas such as stoves or direct sunlight.
Do not leave the devices in a humid place for a long time, such as
bathroom.
V. MAINTENANCE AND CLEANING VI. HEARING AMPLIFIERS CARE
All data in this manual, such as service time, charging time,
continuous working time, and charging times are derived from our
internal laboratory testing and meant for reference purposes only.
Your exact usage and times may differ depending on various
conditions and use patterns. It is a normal phenomenon to hear
some high-pitched whistling or buzzing when the hearing amplifier
is at a high volume level and not fitted well into the ear as a result
of mic feedback. If this occurs, lower the volume and adjust the
hearing amplifier within the ear. Also check to make sure you are
wearing the best size ear domes to ensure a proper fit in the ear
canal, as this may also induce some minor feedback if not snug in
the ear.
Take care not to poke the microphone holes with any sharp objects
to avoid damage.
Do not disassemble or attempt any repairs by yourself. Doing so
will void your warranty.
3. Cleaning
1) Cleaning the ear tips
Remove any earwax buildup using the
enclosed tool. Wipe clean with a tissue or soft cloth.
2) Cleaning Tool
Use a soft cloth or tissue to wipe any moisture, perspiration,
or debris from the surface of the tool.
Note: Do not use alcohol or other cleaning solvents to clean the
hook as this could damage the protective covering.

No Sound
Voices are low,
very weak, or
unclear
Incorrect wearing, the in
ear detection sensor failure
Remove the hearing amplifier,
wear it correctly
Volume too low Increase volume if volume control
available
Device is not charged
Microphones are clogged
Ear Domes or speaker tip
are clogged
Low battery
Place charging the hearing
amplifier until the indicator is
lighted in green color.
Clean out any debris from the mic
holes
Place the aids into the Charging
Case for at least 1.5 hours
Volume is set too low Increase volume if volume control
available
Clean out any debris from the ear
domes and receiver area with the
cleaning brush
Ear Domes are too loose hearing amplifier not inserted
correctly into ear , wear it correctly
Earwax in ear dome Clean out any debris from the ear
domes and receiver area with the
cleaning brush
Hearing has changed Contact your physician to report
any sudden drop in hearing
Charging Case Care
- Keep your charger clean. Heat, moisture and foreign materials
can result in poor performance.
- Using the provided cleaning brush keep the charging ports clear
of debris.
- Do not use water, solvents or cleaning fluids to clean the charging
ports.
- Keep lid closed as much as possible to avoid dust and debris
build up.
- Store your charger in a clean and dry location, i.e. a dresser or
shelf rather than the bathroom or kitchen.
- To ensure the longest life of your rechargeable hearing amplifiers
batteries and the batteries in the charger:
- Fully charge hearing amplifiers batteries every night.
Service and Repair
If, for any reason, your hearing amplifiers and charger do not
operate properly, do NOT attempt to fix it yourself. Besides
possibly causing further damage, you are likely to violate any
applicable warranties or insurance. Should your hearing amplifiers
and charger fail or perform poorly, check the Troubleshooting
Guide section for possible solutions. If problems persist, contact us
for assistance.
SYMPTOM POSSIBLE CAUSES SOLUTIONS
VII.TROUBLESHOOTING GUIDE
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Inconsistent
performance
Distorted sound
Restart required
Incorrect orientation
Charger battery depleted
Poor contact between
hearing amplifier and
charging case
Place aids in charger until charging
begins and remove-this will power
cycle your hearing amplifiers
Ensure the USB cable is connected
to the Charging Case plugged into
power. The Case power status
lights will flash orange to indicate
charging.
Reposition your hearing amplifiers
in their slots, ensuring the contact
points are touching the charge
points in the case.
Reinsert the hearing amplifier into
the charging case
hearing amplifier reverse Check to see if the hearing amplifier
is reversed
hearing amplifiers
whistling in the
charger
After the hearing
aid is connected,
the hearing
amplifier indicator
is not lit
[Fault self-check]
project
hearing amplifier
has no sound
Possible Causes
Plugging out the mouth or
microphone
Clean the sound port or
microphone port
Solution [Fault self-check]
project
After the hearing
aid is connected,
the hearing
amplifier indicator
is not lit
Possible Causes
Poor contact between
hearing amplifier and
charging case
Reinsert the hearing amplifier into
the charging case
hearing amplifier reverse Check to see if the hearing
amplifier is reversed
Solution
The voice is very
weak and unclear
hearing amplifier
plays notification
sound
Indicator light on
hearing amplifier
does not light up
when hearing
amplifier placed
in charging inserts
Low battery Connect the hearing amplifier to
the charging case for charging
Volume is set too low Increase volume if volume control
available
Ear Domes are too loose hearing amplifier not inserted
correctly into ear , wear it correctly
Indication for low battery Charge hearing amplifier
hearing amplifier not
inserted correctly into
charger
Insert hearing amplifier correctly
into charger
Charger not connected to
power source
Connect charger to external power
supply
Battery fully discharged
hearing amplifier failure self-checking table
Wait three hours after placing
hearing amplifier in charger,
regardless of LED behavior

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hearing amplifier
indicator lights
are dark or dim
Charging does
not start
Low battery Connect USB cable to charge
Dirty charging contacts Clean the contacts of the hearing
aid and the charger
hearing amplifier not
inserted correctly into
charger
Insert hearing amplifier correctly
into charger
Charging case fault self-checking table
*Note: If the problem persists, contact your hearing care professional for
assistance.
It will take practice, time, and patience for your brain to adapt to
the new sounds that your hearing amplifiers provide. Hearing is
only part of how we share thoughts, ideas and feelings. Reading
lips, facial expressions, and gestures can help the learning
process and add to what amplification alone may miss.
Please review the following simple communication tips:
For You
- Move closer to and look at the speaker
- Sit face-to-face in a quiet room if possible
- Try out different locations to find the optimal places to listen
- Minimize distractions
- Background noises may be frustrating at first; remember, you
have not heard them for a while
- Let others know what you need; keep in mind that people
cannot “see” your hearing loss
- Develop realistic expectations of what your hearing amplifiers
can and cannot do
- Better hearing with hearing amplifiers is a learned skill
combining desire, practice, and patience. You will learn and
adjust, it just takes a little time. Remember to be patient with
yourself.
For Your Family and Friends
Your family and friends are also affected by your hearing loss.
Request that they:
- Get your full attention before beginning to speak
- Look at you or sit face-to-face
- Speak clearly and at a normal rate and level; shouting can
actually make understanding more difficult
- Rephrase rather than repeat the same words; different words
may be easier to understand
- Minimize distractions while speaking
VIII.TIPS FOR BETTER COMMUNICATION

Model JH-A610
Output. OSPL90 Max.
Sound Gain （FOG）
EQ Input Noise
Working Current
Total Harmonic Distortion
Working voltage
≤120dB+3dB
<40dB
≤29dB+3dB
450Hz～4000Hz
5mA
≤7%+3%
d.c.3.7V
Hearing amplifiers: 2 EarDome: 6
Cleanning Tools: 1 Manual: 1
USB Cable: 1
-29- -30-
Follow operating instructions
B type applied part
Disposal in accordance with Directive 2002/96/EC (WEEE)
Date of manufacture
Serial number
Manufacturer information: The manufacturer is: Huizhou Jinghao
Medical Technology Co.,Ltd.
CE Labeling
This product satisfies the requirements of the applicable
European andnational directives
Warning/ Danger: Improper use might cause serious injuries.
IP code of the device: this device’s grade of against ingress of
solid foreign objects – the access probe of ≥ Ø 12.5mm shall not
penetrate; the grade of waterproof is vertically falling drops shall
have no harmful effects.
IP21
Item
Charging case Input voltage
Charging case Input current
Charging case Output current
Charging case Output voltage
Charging Case
d.c.5.0V
300mA
35mA X2
d.c.4.2 V
Adapte：1
Input：100-240V~50/60Hz 0.2A
Output：5V 1A 5W
* Optional accessories list:
Frequency Range(Not narrower than )
IX.TECHNICAL SPECIFICATION XI. NORMALIZED SYMBOLS
X.Accessories List

-31- -32-
Maintenance
1) We do not authorize any institution or individual to maintain
and/or repair the product. If you suspect that the products may be
in question, please contact us immediately.
2) The user must not attempt any repairs to the device or any of its
accessories. Please contact us for any repair needs.
3) Opening of the equipment by unauthorized agencies is not
allowed and will terminate any claim to warranty. Warning: No
modification of this equipment is permitted.
Storage
1) Always store your devices in the Charging Case when not in
use.
2) Do not store or expose the devices and/or case to extreme
hot/cold temperatures, moist/humid environments, or shock/vibra-
tion.
3) Keep the devices and case in following environmental ranges:
-10℃～55℃, 10%-90%RH, 700-1060 hPa
Disposal
Please dispose of the device in accordance with the
directive 2002/96/EC – WEEE (Waste Electrical
and Electronic Equipment). If you have any
questions, please refer to your local authority
responsible for waste disposal.
This limited warranty covers defects in material and
workmanship for a period of two (2) years from the date of
purchase, which includes the hearing devices, charger case, and
cord within the warranty period.
Any damage caused by improper handling and care, exposure to
elements or chemicals, or unauthorized service will not be covered
by the warranty. All other damage claims excluded. A warranty
claim must be submitted with the purchase receipt.
XII．MAINTENANCE, STORAGE, AND DISPOSAL XIII.WARRANTY
Web: leelpro.com
Email: [email protected]