Tetra AlphaShield Multi-Pursuit Hearing Devices for Hunting Instruction Manual

: June 5, 2024
: Tetra

Table of Contents

TETRA AlphaShield Multi-Pursuit
Battery Instructions
Battery Life
Battery Installation
Placement in the ear
Volume/Program Selection
Maintenance
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

TETRA AlphaShield Multi-Pursuit

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 AlphaShield Series hearing gear.
Please read these instructions to become familiar with your devices TETRA AlphaShield Series products are discrete, comfortable, day-long hearing solutions designed specifically for the hunter and shooter. TETRA AlphaShield 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 specific hunting environment.

WARNINGS:
Improper fit of this device will reduce its effectiveness. Consult the following instructions below for proper fit.

If you experience ANY new ringing or muffled feeling in your ears after use, please choose a different tip to gain a tighter, more occluding fit, or evaluate a hearing protection device with a higher reduction rating. 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. If tips are worn or torn or do not feel as tight or comfortable as previously, replace the tips immediately. Replacement tips are available at www.tetrahearing.com.

Battery Instructions

Each device uses a 10A 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.

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”

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 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 **B** is negative, and 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.

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 D , 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

TIP SELECTION/FIT
Because ear canals come in all shapes and sizes, your TETRA products come with a variety of tips, so you can choose the best fit for your ears. In the plastic ear tip case, you will find 3 pairs (small, medium, and large) of heat-activated memory foam tips, and 3 pairs (small, medium, and large) of silicone tips. Select a tip size that fits snuggly but comfortably in the ear. For maximum protection, we recommend a tip that fully occludes the canal. To achieve the specified level of attenuation and hearing protection, the ear canal must be completely sealed. When fit correctly, the tips should feel tight, but not uncomfortable after wearing for several hours of hunting.

The silicone tips are color-coded. We recommend using red for the right ear and green for the left for easy identification.

To install tip E on the TETRA AlphaShield, press the tip onto the sound bore until the sound bore opening is approximately 1/4 inch inside the end of the tip. Before inserting the hearing protection into the ear canal, ensure that the tip is firmly seated on the device.

TETRA Tip: Many people have two different-sized ear canals.
Find the best size tip to fit each ear individually.

DETERMINING LEFT OR RIGHT

A blue dot on the device indicates that it fits only a left ear and a red dot indicates that it fits only a right ear.

INSERTION

If you choose the TETRA heat-activated foam tip, prior to placing the device in the ear, compress the foam tip. If you prefer the silicone tip, then you do not have to compress the tip prior to insertion.

Place the device in the ear using your thumb and forefinger. Insert the tip end first into your ear canal. Then turn/twist the top part into the concha portion **F**of the ear. The
the tip will expand creating a seal in the ear canal. Be sure that the device seats fully in the concha as shown.

TETRA Tip: Using a mirror may be helpful the first few times you put your devices into your ears properly.

When inserting the device for the first time, there may be a whistle. Don’t worry, this is completely normal, and it will stop once the device is properly seated in the ear canal. If that whistle is bothersome, we suggest that you practice without the battery in the device until you have perfected placement in your ear.

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 out.

Note: Do not pull on the battery door at any point. This can damage the battery door and/or your device.

Volume/Program Selection

The TETRA AlphaShield Multi-Pursuit and Wingshooter devices are equipped with a program button. To change the setting, tap the button on the face of the device to
change the program. The AlphaShield Multi-Pursuit has up to 6 program settings, while the Wingshooter has 4 program settings.

When you change the program you will hear a voice prompt denoting which setting you are in. For example, base programming for the Multi-Pursuit has Waterfowl,
Upland, Elk, Range, Deer, and Turkey.

Base programming for the Wingershooter program has Waterfowl, Waterfowl Boost, Upland, and Range/Clay.

Note: the volume level for each program is based off the hearing test you submitted for programming. If it sounds different than expected, we recommend allowing your brain and ears time to adjust. If it continues, please reach out to our team for further instruction.

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 fit, hum or talk with the devices in place. Your voice should sound noticeably louder with a proper occluded fit.
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Maintenance

Wax buildup is the number one cause of device problems. It is important to keep your device as clean as possible. Wipe daily with a dry cloth, carefully removing any traces of wax and debris.
Open the battery door to turn the device off and to save on battery life.
Opening the battery door allows internal moisture to evaporate, which keeps the electronics working well.
Store in a cool dry place. Do not store in the bathroom.
Keep your device dry and away from extreme temperatures.
Keep your device away from animals and small children.
Do not drop the device.
Remove your device before using hair spray, perfumes, sunscreens, or shaving lotions, as these items can clog or damage your device.
If your unit stops working, check the battery. Make sure the battery is not dead and it 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 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 open the battery door or remove batteries entirely from the devices when you are not using your TETRA hearing gear. Old batteries can corrode in the devices and batteries will run down with doors closed.
Replacement tips are available at www.tetrahearing.com