Lucid ENLITE User manual

MANUAL
ENGLISH
HEARING AMPLIFIER
ENLITE ™
®

INTRODUCTION
1
The hearing amplifier is a personal sound
amplifier that automatically enhances soft
sounds. Loud sounds pass through as though
nothing is in the ears.
The hearing amplifier provides the highest
fidelity sound amplification available at any cost.
The sound quality of hearing amplifier devices
is superior to that of all known custom-fitted
devices, and is available without medical
referral or prescription.
The circuitry in hearing amplifier devices
incorporates a patented new ultra-low-distortion
output amplifier, along with all of the important
features and benefits of the original K-AMP®
circuit first described over 30 years ago by Mead
Killion, Ph.D., Sc.D.(hon), a well known engineer
and professor of audiology. No circuitry,including
digital technology, has proven superior to the
sound quality of K-AMP circuitry – the engine
of hearing amplifier devices.

INTENDED USE
2
Etymotic’s hearing amplifier devices have
high-frequency emphasis for soft sounds, so the
faint sounds of speech can be heard more easily –
especially if the speaker is farther away than
desirable or speaks very softly. The most common
example is someone asking a question from another
room. Soft speech can also be heard in a house of
worship, classroom, courtroom, lecture hall,
theatre, or TV dialog. For many users, hearing
amplifier devices are like reading glasses: they
are used only part of the time.
Adjusting to hearing amplifier devices
• Most hearing amplifier users find the eartips
comfortable to wear for many hours right away.
Others do not.
• Take your time.
• You may want to wear hearing amplifier devices for
short periods until you can wear them for as long
as you wish.
• If the eartips that come on hearing amplifier
devices are not comfortable or do not seal well
in the ear, try other eartip styles supplied to
determine which size is right for you
.
IDENTIFICATION
Battery Door
Two-Position Switch
Eartip
#10 Batteries
Leather Pouch Tool and Extra Filters
Cleaning Tool
3

BATTERY INSERTION
4
The battery must be inserted correctly
or the hearing amplifier will not work.
1. The battery compartment is
located on the underside of
the hearing amplifier.
2. Open the battery door.
3. Remove the yellow tab
from the battery.
4. Insert the battery with the
the flat side facing up.
5. Do not force the battery
into the door.
Battery
Compartment
#10 Battery
Inserted
Battery
Door
Note: The door will not close if
the battery is not inserted correctly.
BATTERIES (CONTINUED)
5
Zinc-Air Batteries
Hearing amplifiers use commonly-available #10
zinc-air hearing aid batteries. They are easy to
find in pharmacies, online and other retail
locations, including Radio Shack.
• Zinc-air batteries have a long shelf life, but once
the tab is removed, battery life is about 9 days
for continuous operation.
• Battery life is about 2 weeks if the devices are
turned off after each use.
• Once the tab is removed, zinc-air batteries may
self-discharge in about 4 weeks whether used
or not.
• The discharge rate varies with temperature and
humidity.
• It is sometimes possible to prolong the life of a
battery by replacing the tab over the air holes,
but results vary.

LOW BATTERY WARNING
6
Low-Battery Warning
A feature called LOBAT™ alerts you when the
battery is at the end of its life.
•
A slow, quiet ticking sound gradually becomes
faster and louder, like the sound of a motorboat.
• After the warning sound first becomes audible, it
may be a few hours before the battery goes dead.
• Hearing amplifier performance will not change
while LOBAT is sounding.
Estimated Battery Life:
9 days continuous operation
2 weeks (approx) if turned off when not in use
• Each Hearing Amplifier uses one #10 zinc-air battery.
• Zinc-air batteries do not have to be recycled.
• Zinc-air batteries can be disposed in the trash.
• Zinc-air batteries are not rechargeable.
SELECTING AN EARTIP
Eartips
7
Selecting an eartip:
incorrectcorrect
No two ears are exactly alike. The eartip that is
most comfortable is the best choice, but it must
seal well to prevent feedback (whistling).
When changing the eartips, make sure the
eartip fits securely on the stem of the device.

INSERTION
8
Insertion
• Make sure the eartip is clean.
• Pull the ear up and out while
inserting.
• Twist and push gently until the
eartip seals in the ear canal.
• When using 3-flange eartips,
moistening may ease insertion.
• When using foam eartips, roll
down or compress the foam
eartip before inserting. Hold
the eartip in place for about 5
seconds while foam expands
to create a tight seal in the
ear canal.
• When using glider eartips no
compression is needed; simply
push into your ear.
9
REMOVAL
Removal
• Remove hearing amplifiers
with a slow twisting motion.
• After removal, place your
device(s) in a protective case.

IMPORTANCE OF A DEEP SEAL
10
Note:
Hearing amplifier devices come with a large
selection of eartips, including two sizes of 3-flange
eartips with long stems. Depending on your ear
geometry, the longer stems may allow the deepest seal.
A deep eartip seal ensures the best performance
and prevents the “hollow voice” sound, called
the occlusion effect.
• The occlusion effect is caused by sound
transmission into the ear from vibration of the
ear canal wall when the ear is occluded by
an eartip.
• The vibration comes from sound pressure
developed in the back of the mouth.
• The occlusion effect is most commonly caused
by vibration from a person’s own voice,
especially from speaking the sounds “ee” and
“uu,” or from playing a brass or woodwind
musical instrument.
• The occlusion effect is worse when there is a
shallow insertion of the eartip.
• Deeply-sealed eartips reduce the occlusion effect.
OPERATION
LOUDNESS ADJUSTMENT
Normal
position
High
position
Battery Door
ON = Closed
OFF = Open
11
ON/OFF
The hearing amplifier turns on and off by
opening and closing the battery door.
Note: It is not necessary to remove the
battery as long as the door is open wide
enough to disable the circuit.
There are two loudness settings,
Normal (N) and High (H).
N: (switch toward the body of the device)
• 15-dB mild amplification and treble
boost for soft sounds.
• No amplification for loud sounds.
H: (switch away from the body of the device)
• 8-dB more amplification than the N
position, and treble boost for soft sounds.
• Mild amplification for loud sounds.
Using the Telephone
It is not necessary to remove the hearing amplifier
when using the telephone. If you are comfortable
holding the phone on or near the ear and a whistling
sound does not occur, the hearing amplifier can
remain in the ear during a call.

GENERAL PRODUCT CARE
Cleaning Tool
12
Simple cleaning with the tool provided will keep
the eartip clean and the hearing amplifier working
properly.
• Use the cleaning tool to
pick out or brush off debris.
• 3-flange eartips can be removed and cleaned in
mild detergent. Dry eartips thoroughly before
reattaching.
• All eartips need to be replaced regularly. With
regular use of hearing amplifier devices, 3-flange
eartips should be replaced every 60-90 days.
• Foam and glider eartips should be discarded and
replaced as needed.
• Do not use alcohol to clean hearing amplifier
devices.
• Remove hearing amplifiers before using hair
products.
• Do not expose hearing amplifier devices to
extreme heat or moisture.
• Avoid dropping or hitting hearing amplifier
devices on a hard surface.
CHANGING FILTERS
Filter Removal
Note: Use the tool to remove the filter.
1. Remove eartip.
1. Insert a new
filter.
2. Insert tool
into the filter.
2. Press gently
against a hard
surface to secure
it in place.
3. Remove filter.
3. Re-attach eartip.
Filter Replacement
Note: Do not use the tool to replace the filter.
13
Each hearing amplifier has a special filter that
enhances sound quality and prevents earwax from
entering the device. A filter should be changed if
the volume decreases or sound quality declines.

TROUBLESHOOTING
14
Problem: No sound.
What to do
:
• Check to see if hearing amplifier is turned on
(battery door closed).
• Clean the eartip and the end of the hearing amplifier.
• Try a fresh battery.
• Replace the filter.
Problem: Sound is not loud enough.
What to do:
• Try the H (high) setting for more amplification.
• Clean the eartip and the end of the hearing amplifier.
• Replace the filter.
Problem: “My voice sounds hollow” or “There is
an echo in my voice”.
What to do:
You may be experiencing the occlusion effect. See p.9.
Make sure the eartip seals deeply in the ear. You may
need to try an eartip with a long stem.
15
CAUTION
!
!
!
!
Consult an audiologist or physician if you
have excessive ear wax, difficulty inserting
the eartips, or discomfort after prolonged use.
In rare instances an eartip may come off in the
ear canal when removing a hearing amplifier.
If this should occur and the eartip cannot be
easily removed, it is recommended that you
promptly contact an audiologist or other
medical professional. A professional can
use blunt tweezers to remove the eartip.
Hearing amplifier devices are made from
materials and components that are standard
in consumer audio products and hearing
protection devices.
Allergic reactions are uncommon. If redness,
soreness or other adverse reactions occur,
discontinue use and contact a medical
practitioner.

16
CAUTION (CONTINUED)
BATTERY WARNING
• Batteries (in the battery pack or installed in the
device) should not be exposed to excessive
heat such as fire, sunshine or similar adverse
environment.
!
!
!
Do not shower or swim while wearing the
hearing amplifier.
The hearing amplifier allows up to 115 dB SPL
A-weighted to pass through. Do not use the
hearing amplifier in loud environments. Avoid
use when exposed to prolonged loud sound.
Keep hearing aids out of the reach of children
or anyone who may accidentally swallow them.
Never put hearing amplifiers in your mouth for
any reason. Do not store in pill containers
where they may be mistaken for medication
and swallowed.
17
BATTERY WARNING (CONTINUED)
• Batteries of low quality may leak and cause
bodily harm. Batteries with incorrect voltage
may cause damage to your device. They may
explode and cause serious injury. Do not expose
your hearing aid to heat, such as an open flame,
microwave, or oven. There is a risk that they will
explode and cause serious injury.
• Do not put batteries in your mouth.
• If a battery or instrument is swallowed, see
a doctor immediately and call the National
Capital Poison Center, 202-625-3333.
• Risk of fire and burns. Do not open, crush, heat
above 60˚C/131˚F or incinerate. Do not short
circuit. If sever bulging occurs, discontinue use.
•
Visit http://www.poison.org/prevent/battery.asp
to learn more important information about
battery safety.

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®
IFU-1015 Rev 02
©2021 Lucid Hearing. Enlite, K-AMP, Hearing
Amplifier and LOBAT are registered trademarks
of Etymotic Research, Inc.