Upgrade Your TETRA

Technology Upgrade

Move from a 60-level to a 90-level device

Device Upgrade


Add New STO

Turkey, Deer, Waterfowl, Multi-Pursuit & MORE!

Upgrade Your Technology

How is 90-level better?

The 90-level devices are better for hunters and shooters with hearing loss. Once you take our quick online hearing test, we’ll develop a custom prescription for your TETRA devices geared specifically for your hearing profile in each ear. This is significantly beneficial in producing better results in several ways:

  • If we know exactly what sounds (pitches) you have trouble with, we can compensate by giving those sounds more boost.
  • Many shooters have asymmetrical hearing loss. A right-handed shooter, for example, tends to have more hearing loss in his or her left ear because it’s closer to the muzzle and exposed during the shot, whereas the right ear is away and partially blocked. The hearing test allows us to compensate for any hearing differences between ears, balancing sound and improving your ability to tell the sound’s direction and distance.
  • Correcting for your hearing loss allows your brain to tell game’s direction and distance, and fully connects you to your immediate surroundings.

Device Upgrade


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.

Send Tetra your impressions from a local audiologist and we make a pair of Custom Shields — devices with STO custom fit to your specifications. CustomShields are especially well-suited for range days and competitions where you communicate with people during or after. They allow you to better hear range commands and were incredibly comfortable.

Advanced hearing enhancement and protection devices optimized for deer, elk, turkey, waterfowl, upland and range/clay. Includes our 90 level technology - customized for your specific hearing levels, plus wind noise elimination.