Tetra CustomShield Series 60/90 Hearing Devices for Hunting Instructions
- June 5, 2024
- Tetra
Table of Contents
HEAR THE HUNT
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 specifically 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
predetermined 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 specific hunting/shooting environment.
WARNINGS:
Improper fit of this device will reduce its effectiveness. Consult the
following instructions below for proper fit.
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 the best
performance.
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.
TETRA Tip: Once you remove the tab, let the battery sit for a couple of minutes before inserting it into the device. This can help your battery last longer.
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, or a voice prompt stating “low battery” indicates
that the battery needs to be replaced.
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 fingernail, 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 is negative, and B the completely
flat side is positive. The flat 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, and gently push the battery
straight in. The lower part of the battery door will flex to accept the
battery.
STEP 3
With the battery installed, gently close the battery door. Wait for three
seconds while the device powers on ( note: the 90-level devices should power
on immediately ). To turn the device off and to prevent battery drain when not
in use, gently pull the battery door open or remove the battery entirely for
storage.
For short-term storage, make sure the volume dial is turned to the ‘OFF’
position (more in Section 5 below) and battery drain should be minimized.
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!
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.
Placement in the ear
DETERMINING LEFT OR RIGHT
A blue shell indicates the device fits the left ear and a red shell indicates
the device fits the right ear.
INSERTION
Place the 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 flush (as shown here).
REMOVAL
To remove the unit from your ear, pull down on your earlobe with your thumb
and forefinger. Grab the device with either the same side hand or your other
hand and simply pull it out.
Note: Do not pull on the battery door at any point. This can damage the
battery door and/ or your device.
TETRA Tip: If your TETRA device is in the ear and the device whistles, then something is not correct.
Check the following:
- Make sure your ear canal is not blocked with wax.
- Make sure the tip is not too worn or too small.
- Make sure the TETRA device is fully seated in the canal.
TETRA Tip: To check tip fit, hum, or talk with the devices in place.
Your voice should sound noticeable louder with a proper occluded fit.
Volume/Program Selection
The TETRA CustomShield 60-level devices have three programs/volumes that
include standard enhancement levels and are not customized for hearing loss
and/or imbalance.
When you press the program/volume 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, Range, Upland, Turkey, Deer, or Elk
Program 2: (2 beeps) Waterfowl, Range, Upland, Turkey, Deer, or Elk Boost
Program 3: (3 beeps) Waterfowl, Range, Upland, Turkey, Deer, or Elk
Magnum
The TETRA AlphaShield 90 also has the three-volume settings, along with a
fourth program ideal for speech clarity, all programmed for your specific
hearing needs in each ear.
When you press the program button you will hear a voice prompt denoting which setting you are in.
Program 1: Waterfowl, Range, Upland, Turkey, Deer or Elk
Program 2: Waterfowl, Range, Upland, Turkey, Deer, or Elk Boost
Program 3: Waterfowl, Range, Upland, Turkey, Deer or Elk Magnum
Program 4: ClearComm (designed for use both hunting and elsewhere where a
clear hearing for voices is needed)
Note: The volume level for each program is based on the hearing test you
submitted for programming. If it sounds different than you expected, we
recommend allowing your ears and brain time to adjust to it. If it continues,
please reach out to us for further instruction.
You can also fine-tune each program by adjusting the volume control. The
volume control F can be adjusted by placing a finger on the volume wheel
with slight pressure and rotating it. 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).
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 it in the bathroom.
- Keep your devices dry and away from extreme temperatures.
- Keep your devices away from animals and small children.
- Take care not to 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 device stops working, check the battery and wax guard. Make sure the battery is not dead and is inserted correctly.
Reminder: you should not have to force the battery door shut, and once closed, the battery should not be exposed.
- Always take great care 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 open the battery door or remove the battery entirely from the device while you are not using your TETRA Hearing™ gear. Old batteries can corrode in devices and batteries will run down with doors closed.
- Replacement Sleeves, D-Rings, and Wax Guards are available online.
For instructions and to learn more about our story and technology, please visit our website www.tetrahearing.com.
HEAR THE HUNT
WWW.TETRAHEARING.COM
SoundTrack Outdoors, LLC
PO BOX 68268 | Franklin, TN 37068