Duck Hunting Ear Protection Waterfowl AlphaShield

$699.00 / Pair Why the price?

Advanced hearing enhancement devices optimized for the most prominent and important sounds for the duck hunter (calls, wings, voices) while providing hearing protection from loud calling and gunshots.

Waterfowl AlphaShield $699.00 / Pair

Waterfowl programming also available on Multi-Pursuit AlphaShield.

30 Day Guarantee
You'll love your new TETRA devices or you'll get your money back. Try them for 30 days, risk free.
30 Day Guarantee
You'll love your new TETRA devices or you'll get your money back. Try them for 30 days, risk free.
Man with Hearing Device. 2019 Guns & Ammo award logo. Man with Hearing Device. 2019 Guns & Ammo award logo.

In case there is any confusion, let’s set the record straight: duck hunting with unprotected ears causes hearing loss. As hearing doctors at TETRA, we see what years of waterfowl hunting does to our patients. Recent studies show that people with hearing loss are more likely to develop dementia, Alzheimers and other chronic health problems.* Hearing loss impacts overall health and wellness, and ruins the hunting experience.

So why do 86% of hunters NOT use hearing protection? Previous products have distorted the sound of the call, either over-amplified everything or blocked out your surroundings, and just weren’t comfortable. We solved those problems with the TETRA Shield Series. Using our patent-pending Specialized Target Optimization (STO) voices and calling are clear and natural while AlphaShield Compression reduces loud sounds to safe levels.

AlphaShield is a small, extremely comfortable, one-size-fits-all solution. AlphaShield provides great comfort and great protection without the need for an ear impression.


TETRA isn’t just hearing protection, it’s hearing perfection.
Easy to use:
  • Extremely comfortable to wear all day
  • Change programs with push of a button
  • Battery operated

  • Waterfowl AlphaShields right and left
  • Waterproof carrying case
  • Pack of size 10 batteries
  • Cleaning tool
  • 2 smaller pocket-sized soft cases
  • Left and right silicone tips (small/medium/large)
  • Left and right medical-grade memory-foam tips (small/medium/large)

Our Technology

Specialized Target Optimization

Our hearing devices feature patent-pending Specialized Target Optimization™ (STO). STO is the world’s first hearing technology that isolates and enhances the exact frequencies needed to improve hearing for your specific hunting environment. With STO, voices are clear, calling sounds natural, wood duck squeals, whistling wings, and mallard drakes are all easily audible.

TETRA products instantly shut down and instantly recover for sudden loud noises, like gunshots, providing the wearer full protection at the very moment it’s needed. For more sustained loud inputs, like loud calling, AlphaShield Compression™ limits the overall output to a safe level, then returns to normal amplification once the loud input has stopped. Never miss a sound you want to hear, and protect your hearing for life.

ClearComm™  is our proprietary algorithm that accentuates human speech while minimizing noises and distractions that occur outside of the frequency range of human voices. ClearComm is useful for better understanding speech and whispers of hunting partners, hearing speech on the range, as well as in other daily activities that require better hearing.

Compare Models

  60-Level 90-Level Multi-pursuit
AlphaShield Compression
Specialized Target Optimization
Personalized Hearing Program
Voice Prompts
Wind Noise Cancellation
ClearComm Program
Digital Signal Processing (DSP)
12 Channel
16 Channel
16 Channel
Noise Reduction
Basic Multi-channel
Feedback Cancellation
3G 4G 4G
Unique Pursuit Programs Single


Hearing and the Brain

Research at Johns Hopkins University suggests that more hearing loss increases the risk of dementia. In one study, people with hearing loss were 24% more likely to have Alzheimer’s.* 

With hearing loss, our brains have to work much harder to make sense of what is being said, and even harder to filter out speech from unwanted background noise. Simply trying to understand conversations requires more mental energy and concentration. 

If basic conversations take up most of our mental energy, there is less opportunity for our brains to sort out and store other information. 

At TETRA, our goal is to minimize hearing loss for hunters and shooters, because research shows if we reduce hearing loss, we can also reduce the chance of getting dementia and Alzheimer’s.

*Source: Lin, F. et al. (2011), Hearing loss and incident dementia. Arch Neurol, 68(2):214-220.

30 Day Guarantee

You'll love your new TETRA devices or you'll get your money back. Try them for 30 days, risk free.

Customer Reviews

Customer Reviews
4.7 Based on 34 Reviews
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Philip N.
Canada Canada
great hearing protection

Went out twice this weekend after receiving them. Was able to pick out birds coming from way off in the distance even with the wind being pretty high. Shots were nicely dropped down in volume so no headaches or ear ringing after the hunt. Also being able to wear a toque while having hearing protection on is just great. The 3 levels of amplification were all great , not needing the max level at all. These also give greater direction in hearing the sounds (you know what side they are coming from) a lot better than the over the ear Razor’s I used to use. One thing is they look fragile but the great thing is they are so comfy you can put them in when leaving the house and not worry about taking them off til you are home. All in all super pleased with the purchase. They are expensive but better technology and a better hunt is worth it.

Matt J.
United States United States
Great product

Works immediately, but gets better after a few wears as your brain adjusts to the electronic sound processing. By my third hunt, the duck calls sounded mostly normal, and it was awesome to protect my ears from the gun blasts but be able to hear everything, almost like normal. Well worth the "inconvenience" of having to change hearing aid batteries. The devices are very comfortable, but take a couple wears to really feel great. Even with a sustained 15+mph wind, the 60s did not bother me at all nor create any of the wind interference that a lot of other electronic amplification devices are notorious for doing. I hope these last a long time, given their high price, but so far so good. Would buy again.

Burl M.
United States United States
So far a good Choice.

So far its been a good choice for me. I have not had great luck with other noise reduction/hearing enhancement products in the past. Outside of the earmuff style and they have there drawbacks in a duck blind. It took me a little bit to find the right tip for a comfortable fit in my ears but now that I have done that I really like the AlphaShields. I can really hear the outdoor sounds that I want but am still getting used to the conversation being or sounding a little different. Also the calling does sound a little different too but overall it is pretty easy to call ducks or geese with these on. the only drawback is having to open the battery compartment to turn the ears off. That part of the operation seems delicate to me and a possible break point. Outside of that I would reccomend these to anyone interested in preserving their hearing while enjoying the great outdoors.

John E.
United States United States
Alpha shield review

I am very pleased with the performance and would have no hesitation recommending it to fellow waterfowlers and sportsman that shoot shotguns a lot, very comfortable and reduces gun blast noise Similar to clapping your hands!

Jamey H.
United States United States
Great hearing pro. and enhancement!

I had the Sport Ears molded inside the ear models for 6 years. I found them lacking in volume and very fragile. I purchased the Tetra Hearing Custom 3 weeks ago and they are fantastic. Highly recommend, worth the $. I hope the Tetra repairs lives up to the product should I require in future,