Labex HARMONY ELECTROLARYNX User manual

Labex Harmony User Manual, Date: 15 February 2021, # 1
LABEX™HARMONY ELECTROLARYNX
USER MANUAL

Labex Harmony User Manual, Date: 15 February 2021, # 2
OVERVIEW
1. What is Labex Harmony
Labex Harmony is a digital electrolarynx device. It
is specially designed to help laryngectomees talk.
Its main feature is the two individually
configurable talk buttons.
Labex Harmony is a CLASS I medical device.
General principle of operation for all models
electrolarynges manufactured by Labex Trade
Ltd.:
The digital electrolarynx produces mechanical
vibrations with a low sound frequency between
60-195 Hz. Applied to the neck, these vibrations
create trembling in the oral cavity compensating
for the energy generated from the lungs.
The combination of starting and stopping sound
vibrations and oral articulation creates
comprehensible speech.

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2. In the box
In the box, you will find everything you need to
start using the device:
•Labex Harmony electrolarynx device;
•USB charging cable (USB A to micro-USB
type B);
•Intelligent USB
charger 5V 2A;
•Labex lanyard;
•User manual;
•Warranty card.
3. Parts and
buttons
Labex Harmony consists of
several main components:
1. Top Cap –The part
which you press against
your neck to receive
the sound.

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2. LED Indicator–Indicates battery charge and
different settings information.
3. Talk Button 1 –Press to produce sound. It
can be configured with its own unique
volume and pitch.
4. Talk Button 2 –Press to produce sound. It
can be configured with its own unique
volume and pitch.
5. Settings Button (FB) –Used for changing
settings, adjustments, and checking the
battery discharge level.
6. Red LED –Indicates when the battery is fully
charged.
7. Green LED –Indicates that the charger slot is
properly connected to the power supply.
8. USB Port –Used to charge the device with
the included USB cable.
9. ON/OFF Switch –Used to turn the device on
or off.

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GETTING STARTED
4. Basic use
The device is partially charged by the
manufacturer. After you take the device out of
the box, you need to fully charge it before
starting usage.
Charging is carried out by the charger included in
the box. Plug the provided USB cable into the
USB Port of the device, the other end of the
cable connects to the charger, and the charger
plugs into the socket. The Green and Red LEDs
on the bottom of the device will turn on.
The Green LED next to the micro USB slot shows
that the charger slot is properly connected to the
power supply.
While the Red LED is on, the charging is not
complete. The Red LED turns off when the
charging process is completed.
NOTE: Due to safety regulations a device usage
while charging is denied.

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If you turn the device on from the bottom switch
while charging and try to use it, the device will
not emit sound and the LED light above the
speech buttons will glow in Red to warn you. To
use the device, simply disconnect the charger.
5. After charging the device, it must
be turned on.
To do this, use the ON/OFF Switch on the bottom
of the device. The LED Indicator lights up in
green briefly. Press the Top Cap of the device
firmly against the neck and then hold Talk Button
1 or Talk Button 2 to speak. The device will start
to emit sound. This allows the proper function of
the product.
6. Finding the sweet spot
A sweet spot is called a place on the throat area
where you feel the sound from the electrolarynx
transmits through the neck tissue and out of the
oral cavity with the most clarity.

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The easiest way to find your sweet spot is by
tightly pressing the electrolarynx Top Cap in
different locations on your neck area and
articulating a single vowel while pressing one of
the Talk Buttons.
What you are looking for is the place on your
neck, which best transmits the sound. While
looking for a sweet spot, it is crucial that you
press the device tightly against your neck tissue
so the sound transmits through the tissue and
out of the oral cavity. Take your time finding your
sweet spot –this is the most important part of
learning to use an electrolarynx. Finding just the
right place will set you up for success.
7. First Words
After you have pinpointed the desired spot, you
can start making some basic sounds. It is crucial
to over-articulate every sound with your mouth
until you feel comfortable. After that, you can
start practicing short words. Slowly work your
way up to sentences and conversation.

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In some cases, talking can be achieved in a
month, in other cases, it can take only 3 days.
For a more detailed guide, please check our blog:
https://labextrade.com/tips-for-using-
electrolarynx/
SETTINGS
8. How to change the volume
You can adjust the volume of each button
individually. To do so, follow this procedure:
1. Press and hold the talk button which
volume you want to adjust (TALK button
1 or TALK button 2).
2. While holding the desired Talk Button, press
and hold the Settings Button. The LED
indicator will start glowing in red.
3. Keep both buttons pressed.
4. After a few seconds, the device will start
emitting sound on its own. Release all
buttons. The LED indicator will start glowing

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in green. The device is now in “Volume setup
mode.”
5. You can now press Talk Button 1 to increase
the volume up and Talk Button 2 to decrease
the volume.
6. When you reach your desired volume, press
the Settings Button to confirm. The device
will automatically save your choice.
NOTE: You can assign a different volume to each
Talk Button.
9. How to change the pitch
You can adjust the pitch of each Talk Button
individually. To do so, follow this procedure:
1. Press and hold the Settings Button.
2. While holding the Settings Button, press and
hold the Talk Button which pitch you want to
adjust (Talk Button 1 or Talk Button 2).
3. Keep both buttons pressed. The LED
Indicator will start glowing red.

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4. After a few seconds, the device will start
emitting sound on its own. Release all
buttons. The device is now in “Pitch setup
mode.”
5. You can now press Talk Button 1 to increase
the pitch and Talk Button 2 to decrease the
pitch.
NOTE: The LED Indicator will blink in red if you
are at the maximum or minimum pitch.
Otherwise, it will glow in green.
6. When you reach your desired pitch level,
press the Settings Button to confirm. The
device will automatically save your choice.
NOTE: You can assign a different pitch for each
Talk Button.
10. How to reset all settings to factory
values
If you want to revert the device to its factory
default volume & pitch, follow these steps:

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1. Press and hold all buttons starting from
the top - Talk Button 1, Talk Button 2, and
the Settings Button.
2. The LED will start glowing in blue. Continue
to hold all buttons until the LED turns from
blue to white.
3. When the LED Indicator turns solid white,
release all buttons and wait 3-4 seconds. All
settings have been reset to the factory
default.
Check our website for video tutorials.
https://labextrade.com/harmony/
BATTERY
11. Check the battery level
While the device is turned on, press and hold the
Settings Button. The LED Indicator will glow in
different colors depending on the battery charge
level.
GREEN –the battery charge is more than 50% of
the capacity.

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YELLOW –the remaining capacity is between
25% and 50%.
RED –the remaining capacity is between 10%
and 25%. The LED will continue to glow in red
after each button press, to remind you to charge
your device.
GLOWING RED - The charge level is below 10%
and the sound is disabled to protect the battery.
The LED Indicator will glow in red after each
press of the Talk Buttons. When you charge the
battery, the sound will be enabled again.
NOTE: It is recommended to charge your device
when the LED indicator lights up in RED. This will
ensure the life of the battery.
NOTE: If you find that the battery in your device
can not hold a charge for more than one hour of
use, then the integrated battery may be near the
end of its life cycle. If this happens, during or
outside the included warranty period, please
contact your local distributor or Labex Trade Ltd.

Labex Harmony User Manual, Date: 15 February 2021, # 13
at https://labextrade.com/contact-us or
12. Charging the battery
To charge the device plug the provided USB
cable into the USB Port at the bottom of the
device. Plug the other end of the provided USB
cable into the provided USB charger and plug the
charger into an electrical socket. The Green and
Red LED Indicators at the bottom of the device
will light up. The Red LED at the bottom of the
device will turn off when the charging process is
completed.
NOTE: If the bottom RED LED is flashing - the
device has entered a battery protection mode. It
can be triggered by one of the following
situations:
•The battery temperature may be over
45°C and the charging process is
temporarily stopped, while the battery
cools below 45°C. This protects the
battery. If the device is exposed to direct

Labex Harmony User Manual, Date: 15 February 2021, # 14
sunlight, move it to a cooler place. The
charging will continue after the device
cools down.
•This is a rare situation: A hardware
problem may be detected and internal
protection is turned on and denies
charging the battery.
CARING FOR YOUR DEVICE
13. Cleaning the device
Since the device is in constant contact with skin
and other surfaces, it should be cleaned at least
once every 24 hours. Build-up dust and dirt can
be the cause of malfunctioning the device.
For the best hygiene practices, the following
procedure should be followed:
1. Clean the outside surfaces of the device
with a slightly damp soft microfiber
cloth.
2. After cleaning all surfaces, you can disinfect
the device by applying a small amount of

Labex Harmony User Manual, Date: 15 February 2021, # 15
disinfectant gel or alcohol. Alternatively,
alcohol wipes can be used.
3. Wipe the device with a soft microfiber cloth
again.
4.
14. Contact information
LABEX TRADE LTD.
59 Sankt Peterburg Blvd., Floor 6, Office 604
4017 Plovdiv, Bulgaria, European Union
T: +359 32 54 9090, M: +359 878 616 711
Information & Orders:
After-sales support:
Website questions:
For more information visit
https://labextrade.com

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General parameters
Labex Harmony
Adjustable pitch
Yes
Adjustable volume
Yes
Pitch range
55 - 165 Hz
Volume range
60 - 83 dB
Speech time per charge
up to 30 h*
Full charge time
3,15 h with Labex charger
Mechanical buttons
Speech buttons
3
2
USB charging
Battery Charging Specification
Revision 1.2
* Depending on pitch and volume selected
Physical parameters
Labex Harmony
Diam x Length
Ø 32 x 123 mm
Weight
146 g with battery
Body material
ABS + Aluminum
Dust resistive
Yes
Moisture resistive
Yes
IP Standart
IP40**
** Only for reference
Features
Labex Harmony
Automatic low battery
warning
Yes
Check discharge level
Yes
Charge finished indication
Yes
Lanyard holder
Yes

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Lanyard
Yes
Power charger
Built-in
Charger type
USB charger
Connector type
Micro USB type B
Charge current
5V 1.5A max. - depending on USB
port power
Battery information
Labex Harmony
Capacity
3,7V 3400 mAh
Battery type
Li-Ion, non-removable
Batteries in the package
1 peace, integrated
Rechargeable
Yes
Protection
Smart electronics
Battery cell manufacturer
LG Chemical
Battery recharge life cycles
More than 500
Warranty conditions
Labex Harmony
Duration
2 years limited warranty
post-warranty repairs
In the factory
*** For the unit only, it does not cover batteries and chargers

Labex Harmony User Manual, Date: 15 February 2021, # 18
INFORMATION
15. Warnings
•Do not submerge the device underwater.
Do not wash the device under running
water. This will potentially damage the
device.
•Do not try to disassemble the device
under any circumstances. This will
permanently void your warranty.
•Do not use any third-party chargers or
charging cables. Use the original ones
provided in the box. Using any other
charging equipment could potentially
damage the battery or the device.
•Do not insert any part of the
electrolarynx or any accessories into the
stoma.
•Do not burn or physically damage the
battery.
•Do not short-circuit a cell or battery.

Labex Harmony User Manual, Date: 15 February 2021, # 19
•Do not charge the device if its
temperature is below 0°C.
•Do not store cells or batteries
haphazardly in a pocket, purse, box, or
drawer where they may short-circuit each
other or be short-circuited by conductive
materials such as coins or keys.
•The device contains a strong magnet that
may interfere with pacemakers or other
implantable devices. Consult with your
physician before use.
16. Safe storage:
•Store in a dark and dry place.
•Store the device and its accessories in its
original box.
•It is recommended to recharge the
battery every 6 months when the device
is stored for a longer period. This
guarantees the life of the battery.
•Store in temperatures between -20°C to
+45°C.

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17. Limited Warranty Conditions
This Limited Warranty covers any defects in
material or workmanship under normal use of
the device, according to the User Manual during
the Warranty Period.
During the Warranty Period, Labex Trade Ltd. will
repair or replace, at no charge, products or parts
of a product that proves defective because of
improper material or workmanship, under
normal use and maintenance.
This Limited Warranty is not transferable.
Due to the nature of the electrolarynges and the
principle of their use, the device is not intended
to be used by multiple people, shared use, and
second-hand use. Because of the contact of the
device to the user's neck, stoma, or other cavities
- the device is for personal use only! Thus the
Limited Warranty provided by Labex Trade Ltd. is
non-transferable.
Duration of the coverage.
This manual suits for next models
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