Tetra CustomShield Series User manual

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CustomShield Series 60/90
At TETRA™, we are hunters, we are hearing scientists, and we don’t like to read
instructions. Hence, this manual is intentionally written for your reading pleasure.
We also recommend you check out our product use and care instructions at www.
tetrahearing.com. Of course, we do want you to read the legal disclaimers and
warnings here. (Our attorney made us say that).
Welcome to the TETRA Hearing family.
We are passionate about helping you Hear the Hunt™.
Congratulations on your purchase of TETRA CustomShield Series hearing gear.
These comfortable, day-long hearing solutions are designed specically for the
hunter and shooter. TETRA CustomShield Series products bring harmful sounds
like gunshots and loud waterfowl calling to safe levels while enhancing the sound
environment for communication, game detection, calling, and localization.
Using TETRA’s AlphaShield Compression™ technology, all sounds above a pre-
determined level are immediately limited. Using your TETRA device, you will still
hear the loud sound clearly, but at a safe level. Unlike conventional plugs or muffs,
low level sounds are enhanced using our patent-pending Specialized Target
Optimization™ (STO) algorithm to maximize hearing of your specic hunting/
shooting environment.

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WARNINGS:
Improper t of this device will reduce its effectiveness. Consult the following
instructions below for proper t.
Individuals exposed to loud occupational or recreational noise, should have annual
hearing checks to monitor their hearing levels over time.
All TETRA devices must be worn and maintained in accordance with instructions.
Cleaning regularly and paying close attention to maintenance ensures best
performance.
1. Battery Instructions
Each device uses a size 13 battery.
TETRA recommends using brand-name batteries as others may vary in size. While
TETRA devices are not hearing aids, they do use the same type of battery commonly
used in hearing aids. Such batteries are designed to have a long shelf life, but they
can go “stale” if on the shelf for a long time. Be sure to check the expiration date.
Pulling off the plastic tab activates the battery. Do not pull the tab off until you need to
use the battery. Check to make sure no adhesive from the plastic sticker is remaining
on the battery blocking the activation holes.
2. Battery Life
With daily use, the battery should last 7-10 days. With intermittent use, batteries may
last for up to a month once activated. Even if not used, once the battery is activated,
it has a limited life. We recommend new batteries if the device has not been used in
several weeks.
Low Battery Indicator- If you haven’t used your TETRA devices in a few weeks and
aren’t sure how old your batteries are, don’t worry, we’ve got your back. All TETRA
devices include a low battery indicator. A warning of three double beeps every eight
minutes indicates that the battery needs to be replaced. If you do not change the
battery, you will hear another warning of six double beeps, at which time your TETRA
device will turn off.
TETRA Tip: Once you remove the tab, let the battery sit for a couple minutes
before inserting it into the device. This can help your battery last longer.

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3. Battery Installation
Because of their small size, we recommend that you
insert or remove batteries on a table, desk, or some
other safe place to reduce the risk of dropping the
instrument or battery.
STEP 1
Using your ngernail, gently pull up on the battery
door tab A until the door swings open. Do not
over-extend the battery door as damage will occur.
STEP 2
Note: The rounded edge of the battery B is negative, and
the completely at side is positive. The at side (+) needs
to be on the door’s (+) side.
With the red (+) of the battery door facing you C, hold the battery with the rounded
edge positioned towards the back, gently push the battery straight in. The lower part
of the battery door will ex to accept the battery.
STEP 3
With the battery installed, gently close the
battery door. Wait for three seconds while the
device powers on. To turn the device off and to
prevent battery drain when not in use, gently
pull the battery door open.
STEP 4
To remove the battery: With the battery red door (+) facing you, tilt the bottom of the
battery towards you. This will allow the battery to move from under the front lip.
Please dispose of used batteries in an environmentally friendly way. Do not place
batteries in your mouth. If swallowed, contact your physician immediately or call the
National Battery Hotline at 1-202-625-3333.
Round edge:
negative (-)
Flat edge:
positive (+)
A
B
C
TETRA Tip: When closing the battery door, it should go into the device VERY
easily. If you must push hard or feel resistance, do not force it. The battery is
likely placed incorrectly in the door. Resist the urge to force it!

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4. Placement in the ear
DETERMINING LEFT OR RIGHT
A blue shell indicates the device ts the left ear and a red shell indicates the device
ts the right ear.
INSERTION
Place canal portion of the CustomShield into the ear canal and rotate the device
backward until the helix D locks into place. Be sure the device is fully-seated in the
ear and is ush (as shown here).
REMOVAL
To remove the unit from your ear, pull down on your
earlobe with your thumb and forenger. Grab the device
with either the same side hand or your other hand and
simply pull out.
Note: Do not pull on the battery door at any point. This
can damage the battery door and/ or your device.
D
TETRA Tip: If your TETRA device is
in the ear and the device whistles,
then something is not correct.
Check the following: 1. Make sure
your ear canal is not blocked with
wax. 2. Make sure the tip is not too
worn or too small. 3. Make sure
the TETRA device is fully seated in
the canal.
TETRA Tip: To check tip t, hum
or talk with the devices in place.
Your voice should sound noticeably
louder with a proper occluded t.

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5. Volume/Program Selection
The TETRA CustomShield 60 has 3 programs
settings (Normal, Boost, Magnum).
When you press the program button E you will
hear an audible beep(s) in your ear.
60 level products have three hunting/shooting
programs:
Program 1: (1 beep) Waterfowl or Range
Program 2: (2 beeps) Waterfowl or Range Boost
Program 3: (3 beeps) Waterfowl or Range Magnum
The TETRA AlphaShield 90 has three hunting/shooting programs and a fourth
program ideal for speech clarity.
When you press the program button you will hear a voice prompt denoting
which setting you are in. For example, if you have the TETRA CustomShield 90
Waterfowl series, the voice prompts you will hear will be as follows
Program 1: (1 beep) Waterfowl or Range
Program 2: (2 beeps) Waterfowl or Range Boost
Program 3: (3 beeps) Waterfowl or Range Magnum
Program 4: (4 beeps) ClearComm (designed for use both hunting and
elsewhere where clear hearing for voices is needed)
You can also ne tune each program by adjusting the volume control F . The
volume control can be adjusted by placing a nger on the volume wheel with
slight pressure and rotating. With your TETRA CustomShield seated in the
ear, rotating the volume wheel forward (toward your face) increases volume.
Rotating the volume wheel backward (toward the back of your head) decreases
volume. If the device whistles, the volume is too high. Rotate back slightly.
To turn off, rotate volume control backward until the two red dots line up (right
ear) or blue dots line up (left ear).
F
E

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6. Maintenance
EAR WAX MAINTENANCE
• Wax buildup is the number one cause of device problems. It is important to
keep your device as clean as possible. Wipe daily after use with a dry cloth,
carefully removing any traces of wax and debris.
• Wax guards may also need to be replaced. If your CustomShield is not
working the most likely cause is a clogged wax guard. Remove the old
one and replace it. Additional wax guards can be purchased at www.
tetrahearing.com.
GENERAL MAINTENANCE
• Store in a cool dry place. Do not store in the bathroom.
• Keep your devices dry and away from extreme temperatures.
• Keep your devices away from animals and small children.
• Do not drop the devices.
• Remove your devices before using hair spray, perfumes, sunscreens or
shaving lotions, as these items can clog or damage your device.
• If your devices stop working, check the battery. Make sure the battery is not
dead and it is inserted correctly. You should not have to force the battery
door shut, and once closed, the battery should not be exposed.
• Always take great caution when opening and closing the battery door. Do
not carry the device by the battery door. Never pull the door further back
than is necessary when inserting or removing the battery.
• Always remove batteries from the devices when you are not using your
TETRA hearing gear. Old batteries can corrode in the devices.
For instructions and to learn more about our story and technology,
please visit our website www.tetrahearing.com.

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Noise
Reduction
Rating 25 DECIBELS
(WHEN USED AS DIRECTED)
THE RANGE OF NOISE REDUCTION RATINGS
FOR EXISTING HEARING PROTECTORS
IS APPROXIMATELY 0 TO 30
(HIGHER NUMBERS DENOTE GREATER EFFECTIVENESS)
SOUNDTRACK OUTDOORS, LLC
MT JULIET, TENNESSEE TETRA CUSTOM
Federal law prohibits
removal of this label
prior to purchase
LABEL REQUIRED BY U.S.
EPA REGULATION 40 CFR
Part 211, Subpart B

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SoundTrack Outdoors, LLC
808 N. MT. JULIET RD. | MT JULIET, TN 37122
WWW.TETRAHEARING.COM