Ceretone LAMBDA L1X User manual
USER
MANUAL
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ceretone.co
Please read this user manual
thoroughly and completely
before using the product.
LAMBDA L1X
v 1.0
Contents
Notice
Intended Use
Warning & Safety Use
Accessory Kits
Do Not Use If
Matters Needing Attention
What is a Hearing Aid
How to Use Your Device
Turn On & Off
Bluetooth Connection
Volume Adjustment
Bluetooth/Hearing Aid Switching
Smart Key (R/L) Behavior
Charging
Sound Profile Switching
How to Wear Your Device
How to Use the Charging Case
Maintenance & Cleaning
Hearing Aids Care
Charging Case Care
Service & Repair
Using Your Hearing Aids Better
Tips For Better Communication
Troubleshooting
Technical Specification
Maintenance, Storage & Disposal
FDA Requirements
Warranty
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❈ This hearing aid is only to be used to help people improve
their hearing ability.
❈ This device is only intended for the purpose described in
these instructions of use.
❈ The manufacturer is not liable for damage resulting from
improper or careless use and does not assume responsibility
for personal injury or property damage sustained by or
through the use of this product.
❈ This device is an amplifying device and is not a therapeutic
medical product.
❈ This device can neither prevent nor alleviate organic
hearing loss.
Notice
I. INTENDED USE
1
❈ This 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
❈ In the case of discomfort and/or pain, please stop using
this device immediately and contact your doctor.
❈ NOT to be used at max volume; a sustained period may
cause discomfort or injury.
❈ This device is NOT recommended for use by those
suffering from Tympanitis or Ear Pyogenesis.
II. WARNING & SAFETY USE
Notice
❈ This device can NOT be used by anyone under the age of 18,
intended only for use by adults 18 and over.
❈ Keep this device away from children and pets.
❈ 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 aids.
❈ 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 them by yourself.
❈ 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 a sauna room), to avoid damage
❈ Batteries should be properly recycled and not disposed of in the
trash.
❈ Keep the devices away from small children. Injury or damage may
result.
❈ Do not set volumes too high. Listening with high-output devices
for extended periods at high volume levels can cause further hearing
damage.
❈ Do not share your hearing aids with others. Using a hearing aid
configured for someone else can result in hearing damage or injury.
II. WARNING & SAFETY USE
2
❈ Monitor for any unusual skin reaction. If you notice any allergic
reaction (itchiness, swelling, or rash), stop wearing the hearing aids
and consult a medical specialist.
❈ Do not touch the hearing aids to any type of magnet or magnetized
object. Your hearing aids 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 can
result and will void the warranty.
❈ Do not store your devices in hot/humid locations. You should
never leave your hearing aids near heating appliances or in direct
sunlight.
❈ Do not leave your hearing aids in the car as inside temperatures
can reach dangerous levels which could damage the devices.
❈ Do not use the hearing aids 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 aids 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.
Notice
II. WARNING & SAFETY USE
3
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 aids designed for someone else may result in
hearing damage
❈ USB cable: 1 piece
❈ Ear tips: 6 pieces (3 pairs)
❈ Charging Case: 1 piece
❈ Cleaning tool: 1 piece
❈ User manual: 1 piece
Notice
III. ACCESSORY KITS
4
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
Notice
IV. DO NOT USE IF ANY OF THE FOLLOWING APPLY TO YOU:
5
V. MATTERS NEEDING ATTENTION, WARNINGS & TIPS
❈ Do not immerse the hearing aid in any liquid. Remove the hearing aid
before swimming or bathing. After swimming or washing, wait for the ear
canal to dry before wearing the hearing aid.
❈ After removing the hearing aid at night, it should be placed in a case
with a desiccant if possible, protected from light, high temperature and
high humidity environment
❈ The external surfaces of the hearing aid should be kept clean, and
earwax in the ear domes should be cleaned out daily.
❈ Applicable objects: Suitable for people with air conduction hearing
loss of about 30-50dB
❈ When you do not use hearing aids, please charge the product regularly
to avoid battery damage; the recommended charging time interval of
hearing aids is ≤ 28 days
A hearing aid is a small electronic device
that you wear in or behind your ear. It
amplifies environmental sounds such as
voices or activity so that a person with
hearing loss can listen, communicate, and
participate more fully in daily activities, as
well as help people hear better in both
quiet and noisy situations.
What is a Hearing Aid?
6
Turn ON:
❈ Remove the hearing aids from the charging case -
they will turn ON automatically (indicator lights flash
blue)
❈ The hearing aids enter into hearing aid mode
automatically after being turned on.
Turn OFF:
❈ Place the hearing aids back into the charging case
- the lights will flash blue three times and the devices
will shut off automatically and begin charging (if the
case is sufficiently charged or plugged into a power
source). The lights on the devices will be solid orange
(indicating charging).
I. TURN ON & OFF
How To Use Your Device
7
Remove devices from case to
turn on
Place back on case to turn off
For ON - devices will
automatically go into Bluetooth
pairing mode with lights blinking
BLUE
For OFF - devices will
automatically go into charging
mode and the lights will turn
solid ORANGE
To connect via Bluetooth (first time pairing):
❈ Remove BOTH Left & Right devices (both must be charged)
from the Charging Case
❈ Be sure Bluetooth is enabled on your phone. Go to the
Bluetooth setting on your phone and select “Pair New Device”
(wording on your particular phone may vary slightly)
❈ Search for the Bluetooth identifier of your device (“Smart
Buds”) and select it to pair (connect) - this may take up to 2
minutes
❈ Be sure to accept any prompts given regarding connecting
the device to your phone
❈ After successful connection, the blue light on the device will
flash once every six seconds instead of rapid blinking
Note: The above pairing only needs to be done one time with your
phone. After that, as long as your phone is nearby and Bluetooth is
enabled, the hearing aids will automatically reconnect when taken
out of the charging case.
II. BLUETOOTH CONNECTION
How To Use Your Device
8
Bluetooth Disconnect:
❈ There are 3 ways to disconnect Bluetooth
1. Turn OFF the devices by returning them to the Charging
Case
2. Long press either the R or L buttons on the devices for 3
seconds (You will hear “Power Off” in your earpiece) to turn
them off. Another 3 second long press will turn them back
on (You will hear “Power On” in your earpiece)
3. Turn OFF Bluetooth on your phone. This will immediately
disconnect your hearing aids from the phone. (You will hear
“Disconnected” in your earpiece) In this case, to reconnect,
simply turn Bluetooth back on in the phone.
❈ Note: Bluetooth on your devices will automatically turn off if they
are not connected to a phone within 30 minutes of being removed
from the Charging Case.
How To Use Your Device
II. BLUETOOTH CONNECTION
9
III. VOLUME ADJUSTMENT
10
❈ Press Key: to increase volume
❈ Press Key: to decrease volume
Note: When listening to music or making phone calls, the
Bluetooth volume can only be controlled by phone.
How To Use Your Device
IV. BLUETOOTH/HEARING AID
FUNCTIONALITY SWITCHING IS AUTOMATIC
❈ The devices will switch to Bluetooth mode automatically when
you are on a phone call or listening to music or watching a video
❈ If you pause/stop the music or end a call, the devices will
automatically enter into hearing aid functionality
❈ When disconnected from the phone (Bluetooth OFF), the
device will automatically enter into hearing aid functionality
V. SMART KEY (R/L) BEHAVIOR
❈ Single click: Play/Pause the song; Answer a phone call;
End the call
❈ Double click/Long press: Reject a call; change hearing
modes when in hearing aid function
❈ Triple click: Skip forward to next song
How To Use Your Device
11
V. SMART KEY (R/L) BEHAVIOR
Taking & Making Calls With Bluetooth
Listening to Music
On either device:
Single press to answer/end calls
Long press to reject calls
On either device:
Single press to play/pause
Triple press to skip
VI. CHARGING
HEARING AID:
When charging the indicator lights will glow orange. After
achieving full charge, they will glow green for one minute
then shut off. Press the ON/OFF button to check on status if
no indicator light is on.
CHARGING CASE:
The charging case will charge via the USB port on the bottom
of the case. The rising bars (1 to 4) will indicate the level of
charge in the case. Once charged, the case can be
unplugged from power and used to recharge the hearing aids
up to 3 times for portability.
How To Use Your Device
12
You can cycle through the 4 Sound Profiles by doing a:
short double-press of “ ” or “ ” OR long press of
either the “ ” or “ ” button
❈ Profile 1: Single Beep (
♪
) = Normal
❈ Profile 2: Two Beeps (
♪♪
) = Noisy
❈ Profile 3: Three Beeps (
♪♪♪
) = Indoor
❈ Profile 4: Four Beeps (
♪♪♪♪
) = Outdoor
Note: You only need to perform the operation on one of
the devices to switch profiles.
VII. SOUND PROFILE SWITCHING
Notice:
❈ Profile Memory: Will be set at Normal when you use it for the first
time. After that, every time you power it on, the profile will be the same
as what was last used.
Applicable Situation
For quiet environments,
such as: Home, Office
For very noisy
environments, such as:
Bar, Noisy Production Line
For very quiet
environments, such as:
Meeting, Library
For outdoor environments,
such as: Street,
Supermarket
VII. SOUND PROFILE SWITCHING
Profile
Normal
Noisy
Indoor
Outdoor
Examples
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How To Use Your Device
Hold the body (the
hard part) and
place it in the ear
Step 2:
a.
(Make sure it is facing the
right direction as shown)
Choose a suitable ear tip size
Install it in device
Step 1:
a.
b.
How To Wear Your Device
14
Move the body and
adjust it slightly
into the auricle so
that it is held
firmly in place
Step 3:
a.
⚠
Attention:
1. The Bluetooth function is only to be used with mobile phones
and related devices for making and receiving calls or listening to
entertainment. They are non-medical device functions, and not
meant to have any medical device functionality or purpose. Please
use them accordingly.
2. 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 aid 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 aid within the ear. Also
check to make sure you are wearing the best size ear tips to
ensure a proper fit in the ear canal, as this may also induce some
minor feedback if not snug in the ear.
How To Wear Your Device
15
❈ 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
❈ The four bar LED light on the Case will flash green while
charging. Each bar represents 25% of charge capacity, all four
lights equals 100% charged. When fully charged, the four lights
will be solid green.
❈ With the hearing aid in the Case, all charging will automatically
turn off when the Case and hearing aids 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.
❈ In the morning, you can press the ON/OFF button once to get a
quick status of charge. The lights on the Case and aids will light
up briefly, indicating their status.
❈ You can also long press the ON/OFF button for three seconds
to stop charging the hearing aids in the case.
How To Use The Charging Case
16
ON/OFF
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 & Maintenance
❈ When not in use, store in a secure area away from
small children and pets.
❈ Do not place hearing aids or charging case near high-
temperature areas such as stoves or direct sunlight.
❈ Do not leave the devices in a humid place for a long
time, such as the bathroom.
❈ 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
a) Cleaning the Ear Tips: Remove any earwax buildup
using the enclosed tool. Wipe clean with a tissue or soft
cloth.
b) 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.
Maintenance & Cleaning
17
HEARING AIDS CARE
❈ Keep your hearing aids clean. Extreme temperatures (hot or
cold), moisture, and foreign substances can result in poor
performance.
❈ 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 aids.
❈ Charging contacts should always be kept clean and dry.
❈ Always store your hearing aids in the charging case when not in
use or cleaning.
CHARGING CASE CARE
❈ Keep your charger clean. Heat, moisture and foreign materials
can result in poor performance.
❈ Using the provided cleaning brush to keep the charging ports
clear of debris.
❈ Do not use water, solvents or cleaning fluids to clean the
charging ports.
❈ Keep the 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 aids
batteries and the batteries in the charger:
❈ Fully charge hearing aids batteries every night.
SERVICE & REPAIR
If, for any reason, your hearing aids do not operate properly, do
NOT attempt to fix it yourself. You may cause further damage and
are likely to violate any applicable warranties or insurance. Should
your hearing aids fail or perform poorly, check the Troubleshooting
Guide for possible solutions. If problems persist, contact us for
assistance.
Maintenance & Cleaning
18
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