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Electronic Hearing Protection Multi-Pursuit AlphaShield

$1,499.00 / Pair Why the price?

Advanced hearing enhancement and protection devices optimized for deer, elk, turkey, waterfowl, upland and everyday listening. 90 device - wind cancellation; customized for your specific hearing levels. 60 device - wind suppression; for standard hearing only.

Multi-Pursuit AlphaShield $1,499.00 / Pair

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For years, manufacturers have expected hunters to take a “one-device-fits-all” approach to hearing protection and enhancement. As hunters ourselves, we know that doesn’t work. The sounds we need to hear on the range or in a duck blind are completely different from those in the turkey woods or deer stand. No two hunts are alike, and your hearing protection shouldn’t be, either. Whether your passion is calling in mallards, flushing upland birds, smashing clay targets, running and gunning a big ‘ol tom, or waiting patiently for a trophy buck, TETRA is dedicated to protecting your hearing, while helping you “Hear The Hunt.” 

At TETRA, we used our patent-pending Specialized Target Optimization™ (STO) to isolate and enhance the exact frequencies hunters need to hear for a variety of pursuits: deer, elk, turkey, waterfowl, range, and upland. We took those frequencies and created custom programs to enhance the sounds you most need/want to hear - like duck calls, gobbles, and voices - and protect you from those you don’t. Now, with our multi-pursuit device, you can get all the custom programming in one convenient device, and changing between programs is as easy as one simple tap.

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

  • Multi-Pursuit AlphaShields right and left
  • 6 pursuit programs (deer, elk, turkey, waterfowl, upland, and range/clay)
  • Water-resistant, soft-sided 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, and the sounds of the game you are pursuing are all easily audible.

Tetra AlphaShield Multi-Pursuit

6 Pursuit-based programs in one device

  • Waterfowl Boost
  • Turkey Boost
  • Upland Boost
  • Deer Boost
  • Elk Boost
  • Clearcomm

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 Hearing™ devices or you'll get your money back. Try them for 30 days, risk free.

Customer Reviews

Customer Reviews
4.6 Based on 41 Reviews
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Brad G.
United States


These work great.

Hunter W.
United States United States

Honest Thoughts

I was hesitant to "give these a try", given the price tag. However, I was tired of the headaches and ringing in my ears I got after touching off my turkey gun or shooting a volley in the duck blind. I tried other products of this nature with lackluster results - the over-the-ear muffs tended to give me a headache after wearing them for hours. Understand that every device, gizmo, and gadget on the market today comes with tradeoffs. Because these are not the custom models, both the plastic and the tip itself have a tendency to work themselves out of my ear (admittedly, I haven't really tried the other tips that were included, for the following reasons). These work. I was able to hear whistling wings as two mallards worked over head (and I could tell the direction they were traveling, which I could not say about a competitor's product!) Even with only a handful of shots we've fired in this miserable duck season, I have not once had any issues with these blocking the shotgun blasts. These do take some getting used to. It is a bit like wearing ear plugs that allow you to hear slightly more. I wish they did not cut the sound of the duck call as much as they do. If you wear a facemask, be careful taking it off with these in your ears. My Alpha Shields fell onto the floor of the boat the first time I took my mask off. Lastly and ultimately, give these a try!

Barry L.
United States United States

Best One Yet

I’ve tried three other “cheaper” hearing devices. Tetra blows them away. I hear things I haven’t for years and the protection from gun shots is fantastic. There’s no wind noise like the cheaper brands and they’re very comfortable for long use. I would definitely buy again. Only suggestion is some type of lanyard connection. Haven’t come close to losing one since the fit is good but I would hate to lose one.

Dallas H.
United States United States

Hearing is awesome, I would go custom mold next time as these tend to hurt your ear the longer you wear them. But I could hear the deer moving well before I ever saw them. For bow hunting it gave me and extra 30 to 40 yds to get ready for a shot as I could hear them sooner. Didn't have one deer sneak up on me

Bill R.
United States United States

Works great but does have areas that could improve

They work great. I've used them in a tree stand and in a wood duck swamp so far. They have the ability to locate the direction the ducks are flying in from even with a toboggan covering them which is awesome. Only issue would be having to take the batteries out or opening the battery door to power down. Hopefully they'll be able to incorporate an on/off switch for future models. Overall I do recommend these and hope they'll last a long time. Cant wait to give the turkeys a go with them as well!